Fix CORE_DEBUG_LEVEL undefined in PIO

Author: me-no-dev

Diff for: cores/esp32/chip-debug-report.cpp

@@ -215,7 +215,9 @@ static void printBoardInfo(void){
 #ifdef ARDUINO_FQBN
   log_printf("  Arduino FQBN      : %s\n", ARDUINO_FQBN);
 #else
+#ifdef CORE_DEBUG_LEVEL
   log_printf("  Core Debug Level  : %d\n", CORE_DEBUG_LEVEL);
+#endif
 #ifdef ARDUINO_RUNNING_CORE
   log_printf("  Arduino Runs Core : %d\n", ARDUINO_RUNNING_CORE);
   log_printf("  Arduino Events on : %d\n", ARDUINO_EVENT_RUNNING_CORE);