[coreboot-gerrit] Change in coreboot[master]: drivers/vpd: add framework to search VPD in romstage

[Name of user not set (Code Review)]

Hello Andrey Petrov, Patrick Rudolph, Łukasz Siudut, Paul Menzel, Hung-Te Lin, build bot (Jenkins), Patrick Georgi, Huang Jin, David Hendricks, Philipp Deppenwiese, Nico Huber, Martin Roth,

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

https://review.coreboot.org/c/coreboot/+/34634

to look at the new patch set (#8).

Change subject: drivers/vpd: add framework to search VPD in romstage
......................................................................

drivers/vpd: add framework to search VPD in romstage

Summary:
Added a framework to search VPD in romstage. Refactored common
code out from the framework of searching VPD in ramstage.

Given a key/value pair in VPD binary blob, and name of a bool
type variable, set the variable value if there is a match.

Several checks are in place:
* The key/value length needs to be correct.
* The key name needs to match.
* THe value is either '1' or '0'.

Test Plan:
* Build an OCP MonoLake coreboot image, flash and run.

Tags:
Signed-off-by: Jonathan Zhang 
Change-Id: Iebdba59419a555147fc40391cf17cc6879d9e1b2
---
M src/drivers/vpd/Makefile.inc
M src/drivers/vpd/vpd.c
A src/drivers/vpd/vpd_common.c
A src/drivers/vpd/vpd_common.h
A src/drivers/vpd/vpd_romstage.c
A src/drivers/vpd/vpd_romstage.h
6 files changed, 336 insertions(+), 102 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/34634/8