usb: gadget: net2280: set all byte enables on start

Default 0 value can result in unintentional zlp for IN endpoints.
Tested-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/udc/net2280.c

@@ -238,6 +238,7 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 			tmp |= (ep->is_in << ENDPOINT_DIRECTION);
 		}
 
+		tmp |= (4 << ENDPOINT_BYTE_COUNT);
 		tmp |= usb_endpoint_num(desc);
 		tmp |= (ep->ep.maxburst << MAX_BURST_SIZE);
 	}