[M] Change in flashrom[main]: flashchips: add GD25F256F

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Nikolai Artemiev, Stefan Reinauer, Victor Lim.

Anastasia Klimchuk has uploaded a new patch set (#3) to the change originally created by Victor Lim. ( https://review.coreboot.org/c/flashrom/+/84090?usp=email )

The following approvals got outdated and were removed:
Code-Review+2 by Nikolai Artemiev, Verified+1 by build bot (Jenkins)

The change is no longer submittable: Code-Review and Verified are unsatisfied now.

Change subject: flashchips: add GD25F256F
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flashchips: add GD25F256F

GD25F256F: 3V 256Mbit, high performance

Tested on ch347 with erase, write, read, and protection

Change-Id: Ibbbbb8a55adbcbc2ee1785782c4eb3771d50c167
Signed-off-by: Victor Lim 
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M flashchips.c
M include/flashchips.h
2 files changed, 54 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/90/84090/3