This is part 1 of 2, where ovn provider info located in
tripleo::profile::base::octavia::api will move
to newly created octavia::provider::ovn.
But that has to be split into 2 parts to avoid breaking the
CI until the THT+pupple-tripleo changes merges [1].
[1]: https://review.opendev.org/#/q/topic:bug/1861886+(status:open+OR+status:merged)
This patch enhances Octavia's OVN driver config, so it can connect to
OVN_Northbound DB using TLS.
Depends-On: https://review.opendev.org/#/c/711333/
Change-Id: I85049de9960586a1069aa750c8d727c6e37cec73
Related-Bug: #1861886