Change in coreboot[master]: util/amdfwtool: Maintain one copy of PSP Level2 entries

[Karthik Ramasubramanian (Code Review)]

Attention is currently required from: Raul Rangel, Karthik Ramasubramanian, Felix Held.
Hello Bao Zheng, Raul Rangel, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/63509

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

Change subject: util/amdfwtool: Maintain one copy of PSP Level2 entries
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util/amdfwtool: Maintain one copy of PSP Level2 entries

AMDFWtool maintains 2 copies of PSP Level2 entries - one in primary slot
A (Type 0x48) and another in backup slot B (Type 0x4A). On boards which
use VBOOT with 2 RW firmware slots, maintaining 2 copies of PSP Level2
entries in each FW slot is redundant and space-consuming. Introduce
option to maintain only one copy of PSP Level2 entries and point to it
from both slots A & B.

BUG=None
TEST=Build and boot to OS in Skyrim. Ensure that only one copy is added
to each FW slot. This achieved a space saving of 1.5 MB in each FW slot.
Before:
apu/amdfw                      0x415fc0   raw           3043328 none
After:
apu/amdfw                      0x415fc0   raw           1556480 none

Signed-off-by: Karthikeyan Ramasubramanian 
Change-Id: I06eef8e14b9c14db1d02b621c2f7207188d86326
---
M util/amdfwtool/amdfwtool.c
M util/amdfwtool/amdfwtool.h
2 files changed, 13 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/09/63509/2