Expose motor current in more configs, disable by default

Marlin/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
-// Motor Current controlled via PWM (Only functional when motor driver current is driven by PWM on supported boards)
-#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
    
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C

Marlin/example_configurations/Felix/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/Hephestos/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/K8200/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/RigidBot/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/SCARA/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/TAZ4/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {175,175,240,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/WITBOX/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/delta/generic/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/makibox/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 // Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
 #define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
 
+// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+   
 // uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
 //#define DIGIPOT_I2C
 // Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8

Marlin/stepper.cpp

   #ifndef PWM_MOTOR_CURRENT
     #define PWM_MOTOR_CURRENT DEFAULT_PWM_MOTOR_CURRENT
   #endif
-  int motor_current_setting[3] = PWM_MOTOR_CURRENT;
+  const int motor_current_setting[3] = PWM_MOTOR_CURRENT;
 #endif
 
 static bool check_endstops = true;