Attention is currently required from: Edward O'Callaghan, Nikolai Artemiev, Sergii Dmytruk.

Nikolai Artemiev uploaded patch set #35 to this change.

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libflashrom,writeprotect: add functions for reading/writing WP configs

New functions are exposed through the libflashrom API for
reading/writing chip's WP settins: `flashrom_wp_{read,write}_cfg()`.

They read/write an opaque `struct flashrom_wp_cfg` instance, which
includes the flash protection range and status register protection mode.

This commit also adds `{read,write}_wp_bits()` helper functions that
read/write chip-specific WP configuration bits.

BUG=b:195381327,b:153800563
TEST=flashrom --wp-{enable,disable,range,list,status} at end of patch series
BRANCH=none

Change-Id: I3ad25708c3321b8fb0216c3eaf6ffc07616537ad
Signed-off-by: Nikolai Artemiev <nartemiev@google.com>
---
M libflashrom.c
M libflashrom.h
M writeprotect.c
M writeprotect.h
4 files changed, 363 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/79/58479/35

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Gerrit-Project: flashrom
Gerrit-Branch: master
Gerrit-Change-Id: I3ad25708c3321b8fb0216c3eaf6ffc07616537ad
Gerrit-Change-Number: 58479
Gerrit-PatchSet: 35
Gerrit-Owner: Nikolai Artemiev <nartemiev@google.com>
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