[M] Change in flashrom[master]: tree/: Change chip restore data type from uint8_t to void ptr

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nikolai Artemiev.

Hello build bot (Jenkins), Edward O'Callaghan, Sergii Dmytruk,

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

https://review.coreboot.org/c/flashrom/+/70349

to look at the new patch set (#7).

Change subject: tree/: Change chip restore data type from uint8_t to void ptr
......................................................................

tree/: Change chip restore data type from uint8_t to void ptr

Chip restore callbacks currently are used by
- spi25_statusreg.c unlock functions to restore status register 1.
- s25f.c to restore config register 3.

Both of these cases only need to save a single uint8_t value to restore
the original chip state, however storing a void pointer will allow more
flexible chip restore behaviour. In particular, it will allow
flashrom_wp_cfg objects to be saved and restored, enabling
writeprotect-based unlocking.

BUG=b:237485865,b:247421511
BRANCH=none
TEST=Tested on grunt DUT (prog: sb600spi, flash: W25Q128.W):
     `flashrom --wp-range 0x0,0x1000000 \
      flashrom --wp-status     # Result: range=0x0,0x1000000 \
      flashrom -w random.bin   # Result: success \
      flashrom -v random.bin   # Result: success \
      flashrom --wp-status     # Result: range=0x0,0x1000000`

Change-Id: I311b468a4b0349f4da9584c12b36af6ec2394527
Signed-off-by: Nikolai Artemiev 
---
M flashrom.c
M include/flash.h
M s25f.c
M spi25_statusreg.c
4 files changed, 57 insertions(+), 10 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/49/70349/7