[sru] OpenStack SRU's - add OVN to supporting projects list

Hi SRU Team

I've made/proposed an update to:

  https://wiki.ubuntu.com/OpenStack/StableReleaseUpdates

For 20.04, OVN is the default/preferred SDN for OpenStack deployments on Ubuntu; as such we'd like to include it in the SRU process we have for stable point releases alongside OpenvSwitch.

We have appropriate deployment and testing tooling to cover OVN as part of an OpenStack deployment in the same way that we do Neutron ML2/OVS for earlier releases.

First usage of this will be:

  https://bugs.launchpad.net/ubuntu/+source/ovn/+bug/1897248

Please could a member of the SRU team review and approve our proposed update to the list of supporting packages.

Regards

James