Introduce UVM_BUILD_TYPE configuration for consuming kata-packages-uvm-debug metapackage

[Camelron]

Merge Checklist

• Followed patch format from upstream recommendation: https://github.com/kata-containers/community/blob/main/CONTRIBUTING.md#patch-format
  • Included a single commit in a given PR - at least unless there are related commits and each makes sense as a change on its own.
• Aware about the PR to be merged using "create a merge commit" rather than "squash and merge" (or similar)
• The upstream/missing label (or upstream/not-needed) has been set on the PR.

Summary

Test Methodology

[Camelron]

This change currently only swaps between uvm contents in kata-containers.img. The change to make a kata-containers-debug.img and route it into the config tomls is trickier, in progress.