I thought I saw a guideline somewhere that we aren't supposed to use abbreviations for architectures, but I can't find it anywhere now. We can drop the 3rd commit if you prefer.
Checklists
[x] I am okay with my commits getting squashed when you merge this PR.
[x] I am familiar with the contributing guidelines.
Please cherry-pick my commits into:
[x] Foreman 3.13/Katello 4.15 (Satellite 6.17)
[x] Foreman 3.12/Katello 4.14 (Satellite 6.16)
[x] Foreman 3.11/Katello 4.13 (orcharhino 6.11 on EL8 only)
What changes are you introducing?
Adding listing of operating systems and architectures that are supported for host provisioning.
Why are you introducing these changes? (Explanation, links to references, issues, etc.)
Previously undocumented.
Anything else to add? (Considerations, potential downsides, alternative solutions you have explored, etc.)
Checklists
Please cherry-pick my commits into: