Automatic merge from submit-queue (batch tested with PRs 50694, 50702)
Allow injection of policy in RBAC post start hook
This change allows the RBAC PostStartHook logic to be reused with different policy data when bootstrapping the cluster. Thus any changes to the bootstrap logic are separated from the policy data.
Signed-off-by: Monis Khan <mkhan@redhat.com>
```release-note
NONE
```
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