Change in coreboot[master]: amdfwtool: Add support for AMD's BIOS A/B recovery feature

[Bao Zheng (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Martin Roth, Marshall Dawson, Zheng Bao, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Marshall Dawson, Zheng Bao, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/56773

to look at the new patch set (#43).

Change subject: amdfwtool: Add support for AMD's BIOS A/B recovery feature
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amdfwtool: Add support for AMD's BIOS A/B recovery feature

The rom layout for A/B recovery:
EFS -> PSP L1 0x48 -> PSP L2 A -> BIOS L2 A
              0x4A -> PSP L2 B -> BIOS L2 B

The coreboot doesn't implement the AMD's A/B recovery. This is only
for the ROM layout. To save some flash space, the entire B section can
be eliminated.

To enable A/B recovery in PSP layout, add "--recovery-ab" to
amdfwtool.

TEST=Majolica(Cezanne)

Change-Id: I27f5d3476f648fcecafb8d258ccb6cfad4f50036
Signed-off-by: Zheng Bao 
---
M util/amdfwtool/amdfwtool.c
M util/amdfwtool/amdfwtool.h
M util/amdfwtool/data_parse.c
3 files changed, 204 insertions(+), 66 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/73/56773/43