Due to quirks in how caching works in lbmk, this may be
error-prone. I'll properly address it in the next audit.
Signed-off-by: Leah Rowe <leah@libreboot.org>
Used to dump MXM config for a given mainboard. We used this
for the HP EliteBook 8560w.
I meant to import this via config/git/ ages ago.
Signed-off-by: Leah Rowe <leah@libreboot.org>