registry.local:9001 access fails after changing of OAM IP

Brief Description
-----------------
After changing the OAM IP address, the SANs for the registry.local is not updated. This results in failure to access the local registry

Severity
--------
TBD.
This may end up more of a procedural/documentation exercise where updating the OAM IP address requires manual steps to handle the registry.local certificate

Steps to Reproduce
------------------
(keystone_admin)]$ system host-lock controller-0
(keystone_admin)]$ system oam-modify oam_subnet=<xxxx> oam_ip=<yyyy> oam_gateway_ip=<zzzz>
(keystone_admin)]$ system host-unlock controller-0

Expected Behavior
------------------
Access to the local registry is still functional

Actual Behavior
----------------
Access to the local registry fails

Reproducibility
---------------
100% Reproducible

System Configuration
--------------------
Any

Branch/Pull Time/Commit
-----------------------
stx master, but likely a day 1 issue

Last Pass
---------
It doesn't appear that this was tested or noticed previously

Timestamp/Logs
--------------
Not needed. Issue is reproducible.

Test Activity
-------------
Functional testing

Workaround
----------
Re-issue the registry.local certificate