Extra debugging for leveling on/off

Marlin/src/HAL/HAL_LPC1768/watchdog.cpp

@@ -68,5 +68,4 @@ bool watchdog_timed_out() { return TEST(WDT_ReadTimeOutFlag(), 0); }
 void watchdog_clear_timeout_flag() { WDT_ClrTimeOutFlag(); }
 
 #endif // USE_WATCHDOG
-
 #endif // TARGET_LPC1768

Marlin/src/feature/bedlevel/bedlevel.cpp

@@ -86,14 +86,18 @@ void set_bed_leveling_enabled(const bool enable/*=true*/) {
     #endif
 
     if (planner.leveling_active) {      // leveling from on to off
+      if (DEBUGGING(LEVELING)) DEBUG_POS("Leveling ON", current_position);
       // change unleveled current_position to physical current_position without moving steppers.
       planner.apply_leveling(current_position);
       planner.leveling_active = false;  // disable only AFTER calling apply_leveling
+      if (DEBUGGING(LEVELING)) DEBUG_POS("...Now OFF", current_position);
     }
     else {                              // leveling from off to on
+      if (DEBUGGING(LEVELING)) DEBUG_POS("Leveling OFF", current_position);
       planner.leveling_active = true;   // enable BEFORE calling unapply_leveling, otherwise ignored
       // change physical current_position to unleveled current_position without moving steppers.
       planner.unapply_leveling(current_position);
+      if (DEBUGGING(LEVELING)) DEBUG_POS("...Now ON", current_position);
     }
 
     sync_plan_position();