usb: gadget: udc: remove comparison to bool in mv_u3d_core.c

Fix the following coccicheck warning:

drivers/usb/gadget/udc/mv_u3d_core.c:1551:5-13: WARNING: Comparison to
bool
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/gadget/udc/mv_u3d_core.c

@@ -1548,7 +1548,7 @@ static void mv_u3d_handle_setup_packet(struct mv_u3d *u3d, u8 ep_num,
 		delegate = true;
 
 	/* delegate USB standard requests to the gadget driver */
-	if (delegate == true) {
+	if (delegate) {
 		/* USB requests handled by gadget */
 		if (setup->wLength) {
 			/* DATA phase from gadget, STATUS phase from u3d */