GitLab

These support an additional bit which we did not turn on yet.
Without this patch they decode up to 512 kB, with this up to 1 MB.

Disentangle the enables of unrelated but mostly compatible chipsets
too, add some more debug output and set the max_rom_decode limits.
Also, make warnings really only warnings.

Corresponding to flashrom svn r1739.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>