Upstream merge of Debian 2.42.1 packaging (no quilt patches)

Source has been updated with changes from git and we use the Debian
packaging data here to match those up.

[endlessm/eos-shell#3276]
@dbnicholson Nevermind. This is because the core pkg doesn't have access to obs `endless` per our convo from earlier. Let me clone the original package to there and reapply the change.