Finish HAL/STM32 cpp wrappers

Marlin/src/HAL/STM32/usb_serial.cpp

@@ -16,7 +16,6 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  *
  */
-
 #if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC)
 
 #include "../../inc/MarlinConfigPre.h"
@@ -51,5 +50,5 @@ void USB_Hook_init() {
   USBD_CDC_fops.Receive = USBD_CDC_Receive_hook;
 }
 
-#endif // EMERGENCY_PARSER
+#endif // EMERGENCY_PARSER && USBD_USE_CDC
 #endif // ARDUINO_ARCH_STM32 && !STM32GENERIC