usbnet: apply usbnet_link_change

Use usbnet_link_change to handle link change centrally.
Signed-off-by: NMing Lei <ming.lei@canonical.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/usbnet.c

@@ -1521,7 +1521,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
 	netif_device_attach (net);
 
 	if (dev->driver_info->flags & FLAG_LINK_INTR)
-		netif_carrier_off(net);
+		usbnet_link_change(dev, 0, 0);
 
 	return 0;