Description of problem:
OSD cluster, cluster admin is not allowed to update ClusterVersion details, however console is rendering an editable YAML editor 

Version-Release number of selected component (if applicable):
4.10.18

How reproducible:
Always

Steps to Reproduce:
1. navigate to ClusterVersion YAML page /k8s/cluster/config.openshift.io~v1~ClusterVersion/version, click on YAML tab
2. cluster-admin is able to do some changes in YAML editor, however when saving the changes it will report 
An error occurred
admission webhook "regular-user-validation.managed.openshift.io" denied the request: Prevented from accessing Red Hat managed resources. This is in an effort to prevent harmful actions that may cause unintended consequences or affect the stability of the cluster. If you have any questions about this, please reach out to Red Hat support at https://access.redhat.com/support

Actual results:
2. cluster admin user is able to edit but not allowed to save the changes

Expected results:

ISSUE 2:

Steps to Reproduce:
1.On OSD console, cluster admin user adds idp from "Administration">"Cluster Settings">"Configuration"->"OAuth",
2.
3.

Actual results:
1.Could add idp successfully.

Expected results:
1. Should disable the function to add idp from OSD console.