[release-1.5] RHIDP-6149: Supported platform list in installation docs#1061

jmagak merged 2 commits intoredhat-developer:release-1.5redhat-developer/red-hat-developers-documentation-rhdh:release-1.5from

openshift-cherrypick-robot:cherry-pick-1054-to-release-1.5openshift-cherrypick-robot/red-hat-developers-documentation-rhdh:cherry-pick-1054-to-release-1.5Copy head branch name to clipboard