Return success if we were able to delete a vlan.  The current code
always returns failure.
Fixes: baf2ad3f6a98 ("vdpa/mlx5: Add RX MAC VLAN filter support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Message-Id: <Yp709f1g9NcMBCHg@kili>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eli Cohen <elic@nvidia.com>
Acked-by: Si-Wei Liu <si-wei.liu@oracle.com>
 
                id = mlx5vdpa16_to_cpu(mvdev, vlan);
                mac_vlan_del(ndev, ndev->config.mac, id, true);
+               status = VIRTIO_NET_OK;
                break;
        default:
        break;