add support for ROSA-HCP

[markleeibm]

Rosa HCP is replacing Rosa Classic in the OpenShift roadmap, it is currently understood that Rosa classic may not be available from early Jan 26 for new installs.

The following related issues are mentioned:
https://issues.redhat.com/browse/OCPSTRAT-2426 for OpenShift < 4.21

and
CP4D needs to increase pods pids limit for some services (e.g DataStage):
https://www.ibm.com/docs/en/software-hub/5.2.x?topic=settings-changing-process-ids-limit
and
https://access.redhat.com/articles/7033551

[fketelaars]

See also #843.