Ensure NGF and nginx can deploy in OpenShift

[sjberman]

Acceptance

• NGF and nginx Deployments should work in OpenShift with the proper permissions, provided in a SecurityContextConstraints resource
• The SCC should only enable the required permissions by the Deployments, and restrict everything else

Dev Notes

• Can we use a single SCC and attach to all nginx data plane Deployments, created at installation time?

[mpstefan]

Blocked by #1443