vdpa/mlx5: Set mkey modified flags on all VQs

Otherwise, when virtqueues are moved from INIT to READY the latest mkey
will not be set appropriately.
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Message-Id: <20240626-stage-vdpa-vq-precreate-v2-14-560c491078df@nvidia.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

drivers/vdpa/mlx5/net/mlx5_vnet.c

@@ -2868,7 +2868,7 @@ static int mlx5_vdpa_change_map(struct mlx5_vdpa_dev *mvdev,
 
 	mlx5_vdpa_update_mr(mvdev, new_mr, asid);
 
-	for (int i = 0; i < ndev->cur_num_vqs; i++)
+	for (int i = 0; i < mvdev->max_vqs; i++)
 		ndev->vqs[i].modified_fields |= MLX5_VIRTQ_MODIFY_MASK_VIRTIO_Q_MKEY |
 						MLX5_VIRTQ_MODIFY_MASK_DESC_GROUP_MKEY;