Import manibuilder from flashrom master

References to the upstream repository have been changed to
`flashrom-stable.git`. The directory `flashrom` is kept,
though, so existing containers can be used for both projects.

Change-Id: I8ba148e30602e8e03e3858f7c1eb6789230654d6
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/70906
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
14 files changed