[M] Change in flashrom[master]: ichspi.c: Read chip ID and use it to populate `flash->chip`

[Nikolai Artemiev (Code Review)]

Attention is currently required from: Nico Huber, Edward O'Callaghan.

Hello build bot (Jenkins), Subrata Banik, Edward O'Callaghan, Angel Pons,

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

https://review.coreboot.org/c/flashrom/+/69195

to look at the new patch set (#14).

Change subject: ichspi.c: Read chip ID and use it to populate `flash->chip`
......................................................................

ichspi.c: Read chip ID and use it to populate `flash->chip`

Read the flash chip vendor/device ID using hardware sequencing, find the
corresponding flashchip entry, and copy it over to `flash->chip`.

Identifying the chip was not previously required as ICH hardware
sequencing handles chip-level details related to read/write/erase ops.

However writeprotect operations require the chip entry to be identified
so that chip->reg_bits can be used to compute status register values.

BUG=b:253715389,b:253713774
BRANCH=none
TEST=flashrom on dedede (JSL) identifies "W25Q128.V..M" chip
TEST=flashrom -{r,v} on dedede
TEST=write/erase bios region on dedede:
     flashrom -{E,w} --layout <(echo '0x381000:0xffffff bios') -i bios

Change-Id: Ia408e1e45dc6f53c0934afd6558e301abfa48ee6
Signed-off-by: Nikolai Artemiev 
---
M ichspi.c
1 file changed, 102 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/95/69195/14