net/mlx5e: Always set attr mdev pointer

Eswitch offloads extensions in following patches in the series require
attr->esw_attr->in_mdev pointer to always be set. This is already the case
for all code paths except mlx5_tc_ct_entry_add_rule() function. Fix the
function to assign mdev pointer with priv->mdev value.
Signed-off-by: NVlad Buslov <vladbu@nvidia.com>
Signed-off-by: NDmytro Linkin <dlinkin@nvidia.com>
Reviewed-by: NRoi Dayan <roid@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c

@@ -711,6 +711,8 @@ mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv,
 	attr->outer_match_level = MLX5_MATCH_L4;
 	attr->counter = entry->counter->counter;
 	attr->flags |= MLX5_ESW_ATTR_FLAG_NO_IN_PORT;
+	if (ct_priv->ns_type == MLX5_FLOW_NAMESPACE_FDB)
+		attr->esw_attr->in_mdev = priv->mdev;
 
 	mlx5_tc_ct_set_tuple_match(netdev_priv(ct_priv->netdev), spec, flow_rule);
 	mlx5e_tc_match_to_reg_match(spec, ZONE_TO_REG, entry->tuple.zone, MLX5_CT_ZONE_MASK);