GitLab

Move the serprog specification there and document a few things we could not
figure out on intel platforms yet.

Corresponding to flashrom svn r1465.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>