drivers: udc_ambiq: do not include DWC2 hardware header

This should not be necessary for this driver.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>

Author: jfischer-no

drivers/usb/udc/udc_ambiq.c

@@ -18,7 +18,6 @@
 #include <zephyr/logging/log.h>
 #include <zephyr/irq.h>
 #include "udc_common.h"
-#include <usb_dwc2_hw.h>
 
 LOG_MODULE_REGISTER(udc_ambiq, CONFIG_UDC_DRIVER_LOG_LEVEL);