Change in flashrom[master]: Prepare for IFD check_access support

[Edward O'Callaghan (Code Review)]

Attention is currently required from: Damien Zammit, Subrata Banik.
Hello build bot (Jenkins), Damien Zammit, Subrata Banik,

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

https://review.coreboot.org/c/flashrom/+/62983

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

Change subject: Prepare for IFD check_access support
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Prepare for IFD check_access support

Based off work in collaboration with Damien Zammit.

The following is intended to allow flashrom to query
the spi or opaque master for access permissions before
attempting to access a given region. This comes up in
cases such as the ichspi driver where the CSME can
deny regions access.

Change-Id: If7bdcac2a4109efbc70abc2d6ae0561f39449004
Signed-off-by: Damien Zammit 
Signed-off-by: Edward O'Callaghan 
---
M flashrom.c
M include/chipdrivers.h
M include/programmer.h
M include/spi.h
M opaque.c
M spi.c
6 files changed, 53 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/83/62983/3