Change in flashrom[master]: flashchips: Add Spansion/Cypress S25FL256L

[Thomas Walker (Code Review)]

Attention is currently required from: Nico Huber, Thomas Walker.
Hello build bot (Jenkins), Nico Huber,

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

https://review.coreboot.org/c/flashrom/+/52310

to look at the new patch set (#3).

Change subject: flashchips: Add Spansion/Cypress S25FL256L
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flashchips: Add Spansion/Cypress S25FL256L

Conducted random write test using Adafruit FT232H programmer.
Confirmed read/write/erase/probe and VERIFIED on completion.

Signed-off-by: Thomas Walker 
Change-Id: I4e8cba554d0590c94dac92aa91e9ab400efca281
---
M chipdrivers.h
M flashchips.c
M flashchips.h
M spi.h
M spi25.c
5 files changed, 60 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/10/52310/3