Neutron-tempest-plugin patches: https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/883553 and https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/884475

We will need to figure out test plan for this new feature and validate if existing (and proposed above) tests are enough to validate this RFE or if we will need any other tests as well.