usb: dwc3: ep0: fix checkpatch warnings

no functional changes
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/dwc3/ep0.c

@@ -105,7 +105,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 	 * IRQ we were waiting for is long gone.
 	 */
 	if (dep->flags & DWC3_EP_PENDING_REQUEST) {
-		unsigned	direction;
+		unsigned int direction;
 
 		direction = !!(dep->flags & DWC3_EP0_DIR_IN);
 
@@ -127,7 +127,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 	 * handle it here.
 	 */
 	if (dwc->delayed_status) {
-		unsigned	direction;
+		unsigned int direction;
 
 		direction = !dwc->ep0_expect_in;
 		dwc->delayed_status = false;
@@ -172,7 +172,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 	 * XferNotReady(STATUS).
 	 */
 	if (dwc->three_stage_setup) {
-		unsigned        direction;
+		unsigned int direction;
 
 		direction = dwc->ep0_expect_in;
 		dwc->ep0state = EP0_DATA_PHASE;