rocky 9 lh comps roughly matched centos stream 9. it was missing rhel
specific packages, and sometimes made diff/merges difficult. we added
them back, but the difference here is we are taking advantage of stream
10's "rhel_only" kind of concept, assuming this does not mess up
diff/merges.

Adding 9.4 comps.

Changes made in applicable comps to prevent vdo and kmod-vdo from
showing up (by default) on aarch64. This is based on 9.4 beta comps
checks. This unfortunately will cause our 9-LH to diverge slightly.