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

We are calling xbmkget in the same way, whether it's
a subfile or subrepo.

Rename these variables to subcurl and subgit, so that we
can call xbmkget unconditionally.

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

We used cbfstool from coreboot 4.13, because it was the
last version to work with the particular format used
for stage files, before the CBFS standard changed in newer
releases of cbfstool.

When I added this board to Libreboot, it was source-only at
first so it didn't matter. I didn't want to do a standalone
cbfstool binary, in case some people decided to use that one
on newer boards, which would cause all sorts of issues.

So I bodged it and just included an import of coreboot 4.13.

Well, the cbfstool from coreboot 4.11, as used for FAM15H
AMD boards, is compatible. I checked the code diff between
the two, and there is no meaningful difference.

I've tested this, and it works, since the last release or
two now includes 820 G2 images, so I  was able to use those
with ./mk inject, to verify whether the refcode file is
still grabbed properly. We need the refcode to handle MRC
on Broadwell platform, but we extract it from an old Google
Chromebook image, that uses the old CBFS stage file layout.

This change solves my problem: the problem was that releases
are bloated further, due to including this extra coreboot
version. This should reduce the size of the next release
considerably, especially after decompressing the tarball.

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

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

i forgot to in the last commit, but it didn't matter because
it just meant that coreboot.git's own download logic kicked
in as a fallback. however, it's better to rely on libreboot's
build system for this, since it has redundancy.

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

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

due to a rule in .gitignore, these were ignored, because it
ignores .tar.xz entries in git status

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

I also cherry-picked a patch from Heads, that fixes build
issues caused by the hacks in the T480 port; several changes
made by Mate are now ifdef'd based on whether a KabyLake
ThinkPad is specified in defconfig.

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

This is currently the latest revision of coreboot.

Other coreboot trees to follow. The "next" tree will
also be merged with coreboot/default, in a follow-up
commit.

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

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