Fix DUET_SMART_EFFECTOR

Marlin/src/MarlinCore.cpp

     SETUP_RUN(L64xxManager.init());  // Set up SPI, init drivers
   #endif
 
-  #if ENABLED(SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
+  #if ENABLED(DUET_SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
     OUT_WRITE(SMART_EFFECTOR_MOD_PIN, LOW);   // Put Smart Effector into NORMAL mode
   #endif
 

Marlin/src/gcode/config/M672.cpp

 
 #include "../../inc/MarlinConfig.h"
 
-#if ENABLED(SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
+#if ENABLED(DUET_SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
 
 #include "../gcode.h"
 #include "../../HAL/shared/Delay.h"
 #include "../parser.h"
 
 /**
- * M672 - Set/reset Duet Smart Effector sensitivity
- *
- *  One of these is required:
- *    S<sensitivity> - 0-255
- *    R              - Flag to reset sensitivity to default
- */
-
-/**
  * The Marlin format for the M672 command is different than shown in the Duet Smart Effector
  * documentation https://duet3d.dozuki.com/Wiki/Smart_effector_and_carriage_adapters_for_delta_printer
  *
   }
 }
 
+/**
+ * M672 - Set/reset Duet Smart Effector sensitivity
+ *
+ *  One of these is required:
+ *    S<sensitivity> - 0-255
+ *    R              - Flag to reset sensitivity to default
+ */
 void GcodeSuite::M672() {
   if (parser.seen('R')) {
     M672_send(M672_ERASEBYTE);
   OUT_WRITE(SMART_EFFECTOR_MOD_PIN, LOW);  // Keep Smart Effector in NORMAL mode
 }
 
-#endif // SMART_EFFECTOR && SMART_EFFECTOR_MOD_PIN
+#endif // DUET_SMART_EFFECTOR && SMART_EFFECTOR_MOD_PIN

Marlin/src/gcode/gcode.cpp

         case 666: M666(); break;                                  // M666: Set delta or multiple endstop adjustment
       #endif
 
-      #if ENABLED(SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
+      #if ENABLED(DUET_SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
         case 672: M672(); break;                                  // M672: Set/clear Duet Smart Effector sensitivity
       #endif
 

Marlin/src/gcode/gcode.h

  * M605 - Set Dual X-Carriage movement mode: "M605 S<mode> [X<x_offset>] [R<temp_offset>]". (Requires DUAL_X_CARRIAGE)
  * M665 - Set delta configurations: "M665 H<delta height> L<diagonal rod> R<delta radius> S<segments/s> B<calibration radius> X<Alpha angle trim> Y<Beta angle trim> Z<Gamma angle trim> (Requires DELTA)
  * M666 - Set/get offsets for delta (Requires DELTA) or dual endstops. (Requires [XYZ]_DUAL_ENDSTOPS)
- * M672 - Set/Reset Duet Smart Effector's sensitivity. (Requires SMART_EFFECTOR and SMART_EFFECTOR_MOD_PIN)
+ * M672 - Set/Reset Duet Smart Effector's sensitivity. (Requires DUET_SMART_EFFECTOR and SMART_EFFECTOR_MOD_PIN)
  * M701 - Load filament (Requires FILAMENT_LOAD_UNLOAD_GCODES)
  * M702 - Unload filament (Requires FILAMENT_LOAD_UNLOAD_GCODES)
  * M810-M819 - Define/execute a G-code macro (Requires GCODE_MACROS)
     static void M666();
   #endif
 
-  #if ENABLED(SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
+  #if ENABLED(DUET_SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD)
     static void M672();
   #endif