Change in flashrom[master]: ichspi: Add support for 64KB SPI erase operation

[Subrata Banik (Code Review)]

Attention is currently required from: Nico Huber, Subrata Banik, Edward O'Callaghan, Angel Pons.
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/+/62870

to look at the new patch set (#8).

Change subject: ichspi: Add support for 64KB SPI erase operation
......................................................................

ichspi: Add support for 64KB SPI erase operation

This patch adds support for SPI HW sequencing 64KB erase operation based
on erase_block size and `only_4k` flag is not set.

BUG=b:223630977
TEST=Able to perform read/write/erase operation on PCH 600 series
chipset (board name: Brya).

Signed-off-by: Subrata Banik 
Change-Id: I534471dc8eeeed66e5cbc44baadcd2448d21d34d
---
M ichspi.c
1 file changed, 4 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/70/62870/8