usb: gadget: omap_udc: remove unneeded semicolon

Fix the following coccicheck warning:

drivers/usb/gadget/udc/omap_udc.c:2579:2-3: Unneeded semicolon
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/gadget/udc/omap_udc.c

@@ -2576,7 +2576,7 @@ omap_ep_setup(char *name, u8 addr, u8 type,
 	case USB_ENDPOINT_XFER_INT:
 		ep->ep.caps.type_int = true;
 		break;
-	};
+	}
 
 	if (addr & USB_DIR_IN)
 		ep->ep.caps.dir_in = true;