Move M211 to cpp

Marlin/src/Marlin.cpp

   return false;
 }
 
-#include "gcode/control/M211.h"
-
 #include "gcode/config/M220.h"
 
 #include "gcode/control/M226.h"

Marlin/src/gcode/control/M211.h → Marlin/src/gcode/control/M211.cpp

  *
  */
 
+#include "../gcode.h"
+#include "../../module/motion.h"
+
 /**
  * M211: Enable, Disable, and/or Report software endstops
  *
  * Usage: M211 S1 to enable, M211 S0 to disable, M211 alone for report
  */
-void gcode_M211() {
+void GcodeSuite::M211() {
   SERIAL_ECHO_START();
   #if HAS_SOFTWARE_ENDSTOPS
     if (parser.seen('S')) soft_endstops_enabled = parser.value_bool();

Marlin/src/gcode/gcode.cpp

 extern void gcode_M163();
 extern void gcode_M164();
 extern void gcode_M165();
-extern void gcode_M211();
 extern void gcode_M220();
 extern void gcode_M226();
 extern void gcode_M240();
         case 209: if (MIN_AUTORETRACT <= MAX_AUTORETRACT) M209(); break;  // M209: Turn Automatic Retract Detection on/off
       #endif
 
-      case 211: // M211: Enable, Disable, and/or Report software endstops
-        gcode_M211();
-        break;
+      case 211: M211(); break;    // M211: Enable, Disable, and/or Report software endstops
 
       #if HOTENDS > 1
         case 218: // M218: Set a tool offset