qtnf_cmd_netdev_changeupper
ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex);
int qtnf_cmd_netdev_changeupper(const struct qtnf_vif *vif, int br_domain);
ret = qtnf_cmd_netdev_changeupper(vif, vif->netdev->ifindex);
ret = qtnf_cmd_netdev_changeupper(vif, br_domain);