Change in flashrom[master]: writeprotect.c: refactor and fix wp_mode functions

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nico Huber, Angel Pons, Nikolai Artemiev, Anastasia Klimchuk.
Hello build bot (Jenkins), Nico Huber, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk,

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

https://review.coreboot.org/c/flashrom/+/62643

to look at the new patch set (#10).

Change subject: writeprotect.c: refactor and fix wp_mode functions
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writeprotect.c: refactor and fix wp_mode functions

This is a follow up on commit 12dbc4e04508aecfff53ad95b6f68865da1b4f07.

Use a lookup table in get_wp_mode() and drop the srp_bit_present check,
since a chip without SRP is just FLASHROM_WP_MODE_DISABLED.

Add a srp_bit_present check to set_wp_mode() if the mode requires it.

BUG=b:182223106
BRANCH=none
TEST=flashrom --wp-{enable,disable,status} on AMD dut

Change-Id: Ib6c347453f9216e5816e4ed35bf9783fd3c720e0
Signed-off-by: Nikolai Artemiev 
---
M writeprotect.c
1 file changed, 13 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/43/62643/10