net: altera_tse: release phylink resources in tse_shutdown()

Call phylink_disconnect_phy() in tse_shutdown() to release the
resources occupied by phylink_of_phy_connect() in the tse_open().

Fixes: fef29982 ("net: altera: tse: convert to phylink")
Signed-off-by: Liu Jian <liujian56@huawei.com>
Link: https://lore.kernel.org/r/20221123011617.332302-1-liujian56@huawei.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/altera/altera_tse_main.c

@@ -990,6 +990,7 @@ static int tse_shutdown(struct net_device *dev)
 	int ret;
 
 	phylink_stop(priv->phylink);
+	phylink_disconnect_phy(priv->phylink);
 	netif_stop_queue(dev);
 	napi_disable(&priv->napi);