Comment 4 for bug 2035012

[1] based on doc OVN doesn't have availability zone for network because OVN is distributed system. But regardless I have created availability zone in OVN using following command

# ovs-vsctl set open_vswitch . external_ids:ovn-cms-options="enable-chassis-as-gw,availability-zones=nova"

# # openstack availability zone list --network
+-----------+-------------+
| Zone Name | Zone Status |
+-----------+-------------+
| nova | available |
+-----------+-------------+

But still skyline UI can't see this AZ during network create tab. I did re-login to get new token but no luck