Use SKC namespace drain

etc/kayobe/ansible/neutron-l3-drain.yml

etc/kayobe/ansible/requirements.yml

...e/ansible/roles/neutron-namespace-drain/defaults/main.yml

.../ansible/roles/neutron-namespace-drain/tasks/add-dhcp.yml

...be/ansible/roles/neutron-namespace-drain/tasks/add-l3.yml

...nsible/roles/neutron-namespace-drain/tasks/drain-dhcp.yml

.../ansible/roles/neutron-namespace-drain/tasks/drain-l3.yml

...yobe/ansible/roles/neutron-namespace-drain/tasks/main.yml

...obe/ansible/roles/neutron-namespace-drain/tasks/setup.yml