vdpa/mlx5: Clear ready indication for control VQ

When clearing VQs ready indication for the data VQs, do the same for the
control VQ.

Fixes: 5262912e ("vdpa/mlx5: Add support for control VQ and MAC setting")
Signed-off-by: Eli Cohen <elic@nvidia.com>
Link: https://lore.kernel.org/r/20210909063652.46880-1-elic@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>

drivers/vdpa/mlx5/net/mlx5_vnet.c

@@ -2145,6 +2145,8 @@ static void clear_vqs_ready(struct mlx5_vdpa_net *ndev)
 
 	for (i = 0; i < ndev->mvdev.max_vqs; i++)
 		ndev->vqs[i].ready = false;
+
+	ndev->mvdev.cvq.ready = false;
 }
 
 static void mlx5_vdpa_set_status(struct vdpa_device *vdev, u8 status)