Tweaks to STM32 headers

Marlin/src/HAL/HAL_STM32/watchdog_STM32.cpp

 
 #if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
 
-#include "../../inc/MarlinConfig.h"
+#include "../../inc/MarlinConfigPre.h"
 
 #if ENABLED(USE_WATCHDOG)
 
+  #include "../../inc/MarlinConfig.h"
+
   #include "watchdog_STM32.h"
   #include <IWatchdog.h>
 
 
   void watchdog_reset() {
     IWatchdog.reload();
-    #if PIN_EXISTS(LED)
+    #if DISABLED(PINS_DEBUGGING) && PIN_EXISTS(LED)
       TOGGLE(LED_PIN);  // heartbeat indicator
     #endif
   }

Marlin/src/HAL/HAL_STM32F1/watchdog_STM32F1.cpp

 }
 
 #endif // USE_WATCHDOG
-
 #endif // __STM32F1__