Change in flashrom[staging]: ich_descriptors: Add function to guess chipset version

[Nico Huber (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/20246

to look at the new patch set (#2).

Change subject: ich_descriptors: Add function to guess chipset version
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ich_descriptors: Add function to guess chipset version

Add guess_ich_chipset() that takes fields from a descriptor dump and
returns the lowest possible chipset version.

Intel did several incompatible changes to the descriptor through the
years. However, they forgot to add a version number. So we have to
apply some heuristics to detect the chipset version in case of exter-
nal flashing.

Change-Id: Ie1736663dc33801b19d3e695c072c61a6c6345a2
Signed-off-by: Nico Huber 
---
M ich_descriptors.c
M ich_descriptors.h
2 files changed, 66 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/46/20246/2