Bug#962228: grub-pc: Backport LUKS2 support

[Petr Vorel]

Package: grub-pc
Version: 2.04-7
Severity: wishlist

Dear Maintainer,

could you please backport LUKS2 support from upstream?  #55093 [1], Add LUKS2
support was implemented in 365e0cc3e ("disk: Implement support for LUKS2") [2].

It'd be great to have the support backported at least in experimental (but
preferably in unstable, so it could eventually get into d-i and workaround [3]
wouldn't have to be used).

Kind regards,
Petr

[1] https://savannah.gnu.org/bugs/?55093
[2] https://git.savannah.gnu.org/cgit/grub.git/commit/?id=365e0cc3e7e44151c14dd29514c2f870b49f9755
[3] https://cryptsetup-team.pages.debian.net/cryptsetup/encrypted-boot.html