Add Planner::sync_from_steppers

Use to sync the planner after an interrupted move (when not overriding
the logical position).

Marlin/Marlin_main.cpp

     // Clear endstop flags
     endstops.hit_on_purpose();
 
+    // Tell the planner where we actually are
+    planner.sync_from_steppers();
+
     // Get Z where the steppers were interrupted
     set_current_from_steppers_for_axis(Z_AXIS);
 
-    // Tell the planner where we actually are
-    SYNC_PLAN_POSITION_KINEMATIC();
-
     #if ENABLED(DEBUG_LEVELING_FEATURE)
       if (DEBUGGING(LEVELING)) DEBUG_POS("<<< do_probe_move", current_position);
     #endif

Marlin/planner.cpp

 }
 
 /**
+ * Sync from the stepper positions. (e.g., after an interrupted move)
+ */
+void Planner::sync_from_steppers() {
+  LOOP_XYZE(i) position[i] = stepper.position((AxisEnum)i);
+}
+
+/**
  * Directly set the planner E position (hence the stepper E position).
  */
 void Planner::set_e_position_mm(const float& e) {

Marlin/planner.h

     static void set_position_mm(ARG_X, ARG_Y, ARG_Z, const float& e);
 
     /**
+     * Sync from the stepper positions. (e.g., after an interrupted move)
+     */
+    static void sync_from_steppers();
+
+    /**
      * Set the E position (mm) of the planner (and the E stepper)
      */
     static void set_e_position_mm(const float& e);