usb: dwc3: Fix bare use of unsigned checkpatch warning

Fixes the bare use of unsigned warning from checkpatch.pl in core.c by
changing 'unsigned' to 'unsigned int'.
Signed-off-by: Kushagra Verma <kushagra765@outlook.com>
Link: https://lore.kernel.org/r/HK0PR01MB280160BCA168FA9FE159F02AF8D39@HK0PR01MB2801.apcprd01.prod.exchangelabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/dwc3/core.c

@@ -426,7 +426,7 @@ static void dwc3_free_one_event_buffer(struct dwc3 *dwc,
  * otherwise ERR_PTR(errno).
  */
 static struct dwc3_event_buffer *dwc3_alloc_one_event_buffer(struct dwc3 *dwc,
-		unsigned length)
+		unsigned int length)
 {
 	struct dwc3_event_buffer	*evt;
 
@@ -469,7 +469,7 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
  * Returns 0 on success otherwise negative errno. In the error case, dwc
  * may contain some buffers allocated but not all which were requested.
  */
-static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
+static int dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned int length)
 {
 	struct dwc3_event_buffer *evt;