usb: dwc3: ep0: make sure to reinitilize ep1 on STALL

When issuing SetStall on ep0, we must make sure to
reinitialize all flags on physical ep1 too.
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/dwc3/ep0.c

@@ -262,9 +262,14 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
 
 static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
 {
-	struct dwc3_ep		*dep = dwc->eps[0];
+	struct dwc3_ep		*dep;
+
+	/* reinitialize physical ep1 */
+	dep = dwc->eps[1];
+	dep->flags = DWC3_EP_ENABLED;
 
 	/* stall is always issued on EP0 */
+	dep = dwc->eps[0];
 	__dwc3_gadget_ep_set_halt(dep, 1);
 	dep->flags = DWC3_EP_ENABLED;
 	dwc->delayed_status = false;