⚡️ Formbot ST7920 delays, intentional X2 pins (#22915)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/inc/Conditionals_adv.h

 #endif
 
 // Fallback Stepper Driver types that depend on Configuration_adv.h
-#if NONE(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS)
+#if EITHER(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS)
+  #define HAS_X2_STEPPER 1
+#else
   #undef X2_DRIVER_TYPE
 #endif
 #if DISABLED(Y_DUAL_STEPPER_DRIVERS)

Marlin/src/module/stepper.cpp

   #if HAS_X_ENABLE
     X_ENABLE_INIT();
     if (!X_ENABLE_ON) X_ENABLE_WRITE(HIGH);
-    #if EITHER(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS) && HAS_X2_ENABLE
+    #if BOTH(HAS_X2_STEPPER, HAS_X2_ENABLE)
       X2_ENABLE_INIT();
       if (!X_ENABLE_ON) X2_ENABLE_WRITE(HIGH);
     #endif

Marlin/src/pins/pins_postprocess.h

 #endif
 
 // The X2 axis, if any, should be the next open extruder port
-#if EITHER(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS) && !defined(X2_DIAG_PIN) && !defined(X2_STEP_PIN) && !PIN_EXISTS(X2_CS_PIN)
+#if HAS_X2_STEPPER && !defined(X2_DIAG_PIN) && !defined(X2_STEP_PIN) && !PIN_EXISTS(X2_CS_PIN)
   #define Y2_E_INDEX INCREMENT(X2_E_INDEX)
 #else
   #define Y2_E_INDEX X2_E_INDEX
 #endif
-#if EITHER(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS)
+#if HAS_X2_STEPPER
   #ifndef X2_STEP_PIN
     #define X2_STEP_PIN   _EPIN(X2_E_INDEX, STEP)
     #define X2_DIR_PIN    _EPIN(X2_E_INDEX, DIR)

Marlin/src/pins/ramps/pins_FORMBOT_RAPTOR2.h

 #if ENABLED(CASE_LIGHT_ENABLE) && PIN_EXISTS(CASE_LIGHT) && (CASE_LIGHT_PIN == SPINDLE_LASER_ENA_PIN || CASE_LIGHT_PIN == SPINDLE_LASER_PWM_PIN)
   #error "CASE_LIGHT_PIN conflicts with a Spindle / Laser pin."
 #endif
+
+#if HAS_MARLINUI_U8GLIB
+  #define BOARD_ST7920_DELAY_1               125
+  #define BOARD_ST7920_DELAY_2               125
+  #define BOARD_ST7920_DELAY_3               125
+#endif

Marlin/src/pins/ramps/pins_FORMBOT_TREX3.h

   #define E1_CS_PIN                           44
 #endif
 
-#define E2_STEP_PIN                           42
-#define E2_DIR_PIN                            43
-#define E2_ENABLE_PIN                         44
+#if HAS_X2_STEPPER
+  #define X2_STEP_PIN                         42
+  #define X2_DIR_PIN                          43
+  #define X2_ENABLE_PIN                       44
+#else
+  #define E2_STEP_PIN                         42
+  #define E2_DIR_PIN                          43
+  #define E2_ENABLE_PIN                       44
+#endif
 
 //
 // Temperature Sensors
     #define BEEPER_PIN                        37
   #endif
 #endif
+
+#if HAS_MARLINUI_U8GLIB
+  #define BOARD_ST7920_DELAY_1               125
+  #define BOARD_ST7920_DELAY_2               125
+  #define BOARD_ST7920_DELAY_3               125
+#endif

Marlin/src/pins/sensitive_pins.h

 // Chip Select and Digital Micro-stepping
 //
 
-#if EITHER(DUAL_X_CARRIAGE, X_DUAL_STEPPER_DRIVERS)
+#if HAS_X2_STEPPER
   #if PIN_EXISTS(X2_CS) && AXIS_HAS_SPI(X2)
     #define _X2_CS X2_CS_PIN,
   #else