Signed-off-by: Leah Rowe <leah@libreboot.org>

Patches pulled from:
https://git.nicholasjohnson.ch/grub
This is the author of the rebased patches:
https://nicholasjohnson.ch/
(Nicholas Johnson <nick@nicholasjohnson.ch>)

However, this is a *rebase* performed by Nicholas,
based on these patches:

https://aur.archlinux.org/cgit/aur.git/tree/?h=grub-improved-luks2-git
...at revision: 1c7932d90f1f62d0fd5485c5eb8ad79fa4c2f50d

The AUR patches were based on GRUB 2.06, whereas Nicholas's
rebase is upon grub 2.12, which Libreboot currently uses.

These patches import the PHC implementation of argon2i/id
key derivation functions, seen here:
https://github.com/P-H-C/phc-winner-argon2

GRUB (upstream) does not merge these patches and probably won't,
because even though they're libre, they're not copylefted or
otherwise under GPL terms that GRUB can accept.

Therefore, we in Libreboot must maintain these from now on,
for our version of GRUB. The upshot? LUKSv2 decryption should
now work, perfectly, in GRUB!

Signed-off-by: Leah Rowe <leah@libreboot.org>

This is specifically the following Git revision:
7a994c87f571ac99745645be0bdde9827297321a
from 10 July 2023

The keyboard fix for HP EliteBooks was merged upstream,
so lbmk no longer needs this patch; it comes with GRUB.

Signed-off-by: Leah Rowe <leah@libreboot.org>

python 3 is default now, in all the distros

specifically calling "python3" often doesn't work anymore

python2 is obsolete

let python2 die

the deleted patch (in this commit) was written to fix an
issue theoretically; it hasn't been fully tested, and some
people have reported strange issues since this patch was
merged - there is no proof that this patch causes them, but
removing this patch is the correct thing to do regardless

This reverts commit 1497ae045104145de677fd151da4de6e92be4e5a.

The blanket GRUB patch seems to break PS/2 keyboard handling across
other platforms, so revert it.

This introduces a patch to grub which disables the coreboot
specific handling, allowing PS/2 keyboards to be handled the
same as i386-pc.  However this alone breaks the keyboard in
Linux, requiring coreboot to perform PS/2 initialization.

I think GRUB may be restoring the original configuration of
the PS/2 controller once it exits, and if coreboot doesn't
initialize the controller then it's restored to the default
state which Linux doesn't seem to like. I think the emulated
keyboard interface provided by the EC on the E6400 behaves
in a non-standard way that is incompatible with the old
coreboot specific handling.

gnulib too

gnulib...