New review comment by dkwo on void-packages repository

https://github.com/void-linux/void-packages/pull/32636#discussion_r703781685

Comment:
Actually, `efivar` and `gnu-efi-libs` could be removed, which I did, and it still builds fine.
Had to keep the new `fwupd-efi` in both deps and makedeps though, otherwise it would fail or not pick it up as deps.