usb: gadget: udc: atmel: use 1 bank endpoints for control transfers

Use 1 bank endpoints for control transfers
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

drivers/usb/gadget/udc/atmel_usba_udc.c

@@ -1056,6 +1056,7 @@ static struct usb_ep *atmel_usba_match_ep(struct usb_gadget *gadget,
 
 		switch (usb_endpoint_type(desc)) {
 		case USB_ENDPOINT_XFER_CONTROL:
+			ep->nr_banks = 1;
 			break;
 
 		case USB_ENDPOINT_XFER_ISOC: