Move Stepper::synchronize to Planner (#10713)

Co-Authored-By: ejtagle <ejtagle@hotmail.com>

Marlin/src/gcode/geometry/G53-G59.cpp

@@ -33,7 +33,7 @@
  */
 bool GcodeSuite::select_coordinate_system(const int8_t _new) {
   if (active_coordinate_system == _new) return false;
-  stepper.synchronize();
+  planner.synchronize();
   float old_offset[XYZ] = { 0 }, new_offset[XYZ] = { 0 };
   if (WITHIN(active_coordinate_system, 0, MAX_COORDINATE_SYSTEMS - 1))
     COPY(old_offset, coordinate_system[active_coordinate_system]);