net/mlx5: fix parser inner value

In validate() it sets the value to 1 whereas the expected one is
IBV_FLOW_SPEC_INNER.

Fixes: c2c6ddd51da4 ("net/mlx5: limit flow API rules to one tunnel")
Cc: stable@dpdk.org

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>

drivers/net/mlx5/mlx5_flow.c

@@ -866,7 +866,7 @@ priv_flow_convert_items_validate(struct priv *priv,
 						   " VXLAN encapsulations");
 				return -rte_errno;
 			}
-			parser->inner = 1;
+			parser->inner = IBV_FLOW_SPEC_INNER;
 		}
 		if (parser->drop) {
 			parser->drop_q.offset += cur_item->dst_sz;