[coreboot-gerrit] Change in coreboot[master]: drivers/vpd: add VPD region VPD_RW_THEN_RO

[Jonathan Zhang (Code Review)]

Hello Hung-Te Lin, build bot (Jenkins), Johnny Lin, David Hendricks, Julius Werner,

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

https://review.coreboot.org/c/coreboot/+/41732

to look at the new patch set (#4).

Change subject: drivers/vpd: add VPD region VPD_RW_THEN_RO
......................................................................

drivers/vpd: add VPD region VPD_RW_THEN_RO

This change is based on the concept that system user's (overwrite)
settings are held in VPD_RW region, while system owner's (default)
settings are held in VPD_RO region.

Add VPD_RW_THEN_RO region type, so that VPD_RW region is searched
first to get overwrite setting, otherwise VPD_RO region is searched
to get default setting.

Signed-off-by: Jonathan Zhang 
Change-Id: Icd7cbd9c3fb2a6b02fc417ad45d7d22ca6795457
---
M src/drivers/vpd/vpd.c
M src/drivers/vpd/vpd.h
2 files changed, 10 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/32/41732/4