Description of problem:
rhel-osp-installer should display only supported installation Media .
Currently the list include Centos/Ubuntu/Suse......
We should display only what supported
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.browse installation Media under host->installation media
2.check only supported installation Media appears
Foreman/Staypust is supported only with context of deploying RHEL-OSP.
We do want to kick unreleased menus/options out, I'm setting this as medium priorities, we should plan this for one of our next sprints.