net/mlx5: Add header re-write to the checks for conflicting actions

We can't allow only some of the rules sharing an FTE to ask for
header re-write, add it to the conflicting action checks.

Fixes: 0d235c3 ('net/mlx5: Add hash table to search FTEs in a flow-group')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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

@@ -1429,7 +1429,8 @@ static bool check_conflicting_actions(u32 action1, u32 action2)
 
 	if (xored_actions & (MLX5_FLOW_CONTEXT_ACTION_DROP  |
 			     MLX5_FLOW_CONTEXT_ACTION_ENCAP |
-			     MLX5_FLOW_CONTEXT_ACTION_DECAP))
+			     MLX5_FLOW_CONTEXT_ACTION_DECAP |
+			     MLX5_FLOW_CONTEXT_ACTION_MOD_HDR))
 		return true;
 
 	return false;