Apply correct indentation to directives

Co-authored-by: Sebastian Romero <[email protected]>

Author: pennam

src/ArduinoCellular.cpp

@@ -221,11 +221,11 @@ bool ArduinoCellular::awaitNetworkRegistration(){
         if(this->debugStream != nullptr){
             this->debugStream->print(".");
         }
-#if defined(ARDUINO_ARCH_MBED)
-        if(mbed::Watchdog::get_instance().is_running()) {
-            mbed::Watchdog::get_instance().kick();
-        }
-#endif
+        #if defined(ARDUINO_ARCH_MBED)
+            if(mbed::Watchdog::get_instance().is_running()) {
+                mbed::Watchdog::get_instance().kick();
+            }
+        #endif
         delay(2000);
     }
     return true;