Revert "qubes/vm/qubesvm: remove prefixes from qubesdb keys"
Revert "qubes/vm/qubesvm: remove prefixes from qubesdb keys"

There is no point in changing *public API* for just a change without any
better reason. It turned out most of those settings will be the same in
Qubes 4.0, so keep names the same.

This reverts commit 2d6ad3b60c0e7cf5a7de3e3031d6b7db7ba366f3.

QubesOS/qubes-issues#1812

QubesOS/qubes-core-admin,marmarek/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin,QubesOS/qubes-core-admin,QubesOS/qubes-core-admin,woju/qubes-core-admin,woju/qubes-core-admin,marmarek/qubes-core-admin