Fix compiling errors for the dgus display

Handler code section needed for any leveling not just probe.

Fix for renamed variables upstream.

Added default to switch statement to resolve compile warning.

Marlin/src/lcd/extui/dgus_creality/DGUSScreenHandler.cpp

@@ -930,7 +930,7 @@ uint16_t CreateRgb(double h, double s, double v) {
   return (((static_cast<uint8_t>(out.r * 255) & 0xf8)<<8) + ((static_cast<uint8_t>(out.g * 255) & 0xfc)<<3) + (static_cast<uint8_t>(out.b * 255)>>3));
 }
 
-#if HAS_BED_PROBE
+#if HAS_LEVELING
   void DGUSScreenHandler::UpdateMeshValue(const int8_t x, const int8_t y, const float z) {
     //SERIAL_ECHOPGM("X", x);
     //SERIAL_ECHOPGM(" Y", y);

Marlin/src/lcd/extui/dgus_creality_lcd.cpp

@@ -226,8 +226,8 @@ bool hasPrintTimer = false;
     void onPidTuning(const result_t rst) {
       // Called for temperature PID tuning result
       switch (rst) {
-        case PID_BAD_EXTRUDER_NUM:
-          PIDHandler::result_message = GET_TEXT(MSG_PID_BAD_EXTRUDER_NUM);
+        case PID_BAD_HEATER_ID:
+          PIDHandler::result_message = GET_TEXT(MSG_PID_BAD_HEATER_ID);
           ScreenHandler.setstatusmessagePGM(PIDHandler::result_message);
           break;
         case PID_TEMP_TOO_HIGH:
@@ -237,11 +237,13 @@ bool hasPrintTimer = false;
         case PID_TUNING_TIMEOUT:
           PIDHandler::result_message = GET_TEXT(MSG_PID_TIMEOUT);
           ScreenHandler.setstatusmessagePGM(PIDHandler::result_message);
-        break;
+          break;
         case PID_DONE:
           PIDHandler::result_message = GET_TEXT(MSG_PID_AUTOTUNE_DONE);
           ScreenHandler.setstatusmessagePGM(PIDHandler::result_message);
-        break;
+          break;
+		default:
+		  break;
       }
     }
   #endif