net/mlx5: E-switch, Add helper to check egress ACL need

Currently only VF vports need egress ACL table.
Add a generic helper to check whether a vport need egress
ACL table or not.

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Vu Pham <vuhuong@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>