Change in flashrom[master]: [WIP] flashchips: Add support for GigaDevice GD25LR256E, GD251R512ME

[Ravishankar Sarawadi (Code Review)]

Attention is currently required from: Ravishankar Sarawadi.
Hello build bot (Jenkins), Angel Pons, Sukumar Ghorai,

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

https://review.coreboot.org/c/flashrom/+/58025

to look at the new patch set (#2).

Change subject: [WIP] flashchips: Add support for GigaDevice GD25LR256E, GD251R512ME
......................................................................

[WIP] flashchips: Add support for GigaDevice GD25LR256E, GD251R512ME

Datasheets:
    https://www.gigadevice.com/datasheet/gd25r256e/
    https://www.gigadevice.com/datasheet/gd25lr512me/

BUG=none
BRANCH=none
TEST= Flash image using Flashrom Tool

sudo dut-control cold_reset:on fw_wp_en:off spi2_buf_en:on spi2_buf_on_flex_en:on spi2_vref:pp1800 spi_hold:off
sudo flashrom -V -p raiden_debug_spi -w <test_binary>
sudo dut-control spi2_buf_en:off spi2_buf_on_flex_en:off spi2_vref:off spi_hold:off cold_reset:off

Change-Id: I2fe6bc1219cd1ee19b93caabab69de938cfc44b0
Signed-off-by: Ravi Sarawadi 
---
M flashchips.c
M flashchips.h
2 files changed, 96 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/25/58025/2