net/mlx5e: TC, Cleanup ct resources for nic flow

The cited commit removes special handling of CT action. But it
removes too much. Pre ct/ct_nat tables and some other resources
are not destroyed due to the cited commit.

Fix it by adding it back.

Fixes: 08fe94ec ("net/mlx5e: TC, Remove special handling of CT action")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Paul Blakey <paulb@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -1439,6 +1439,7 @@ static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv,
 		mlx5e_hairpin_flow_del(priv, flow);
 
 	free_flow_post_acts(flow);
+	mlx5_tc_ct_delete_flow(get_ct_priv(flow->priv), attr);
 
 	kvfree(attr->parse_attr);
 	kfree(flow->attr);