Comment 3 for bug 1855187

Sorry I though it would be an issue for AIO-SX systems but there's a check for that. It's only an issue on other system types before the second controller is installed.
See: https://opendev.org/starlingx/config/src/branch/master/sysinv/sysinv/sysinv/sysinv/api/controllers/v1/interface.py#L844

My understanding is that function should simply check that the host is locked. There were exceptions in prior builds/releases that are no longer applicable.