https://issues.redhat.com/browse/OCPBUGS-6789 adds the ability to enable PSA enforcement through featuresets.

This was originally planned for 4.12.z, then said it wasn't making 4.12, so OCPBUGS-7281 was retargeted for 4.13 only and completed (release pending). Found out that most of the PRs did make it to 4.12, so we will need to make a few adjustments:

• Make sure a note about this gets into the appropriate 4.12 z-stream that OCPBUGS-6789 is included in.
• Remove the note about this from the 4.13 release notes
• Add the docs about this to 4.12
• Include a caveat that this only works when the TP feature set is enabled after the cluster is installed; not during installation time (4.12 only)