Change in coreboot[master]: util/ifdtool: Use -p platform name to detect IFDv2 platform and chipset

[Subrata Banik (Code Review)]

Attention is currently required from: Subrata Banik, Paul Menzel, Tim Wawrzynczak, Stefan Reinauer, Angel Pons.
Hello build bot (Jenkins), Tim Wawrzynczak, Tim Wawrzynczak, Stefan Reinauer, Angel Pons, Angel Pons,

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

https://review.coreboot.org/c/coreboot/+/54305

to look at the new patch set (#7).

Change subject: util/ifdtool: Use -p platform name to detect IFDv2 platform and chipset
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util/ifdtool: Use -p platform name to detect IFDv2 platform and chipset

ifdtool uses `chipset` information to determine how certain straps
are decoded. This has been used for IFDv1 platforms as well as IFDv2
platforms (CHIPSET_500_600_SERIES_TIGER_ALDER_POINT).

IFDv2 platforms are all expected to pass in `-p` argument to identify
the platform. This platform information can be used to identify the
appropriate chipset information. For IFDv1 since `-p` argument is not
provided, ifdtool needs to use certain fields in the descriptor
(e.g. strap length) for unique identification of IFDv1 chipset.

This change updates `check_ifd_version()` function to:
1. Determine if IFD version is v1 or v2 based on `-p` argument.
If `-p` is not provided, it assumes that the platform is using IFDv1.
2. Based on IFD version, it calls either `ifd2_platform_to_chipset()`
or `ifd1_guess_chipset()` to determine chipset information.

This fixes the issue reported with CB:44815, where ifdtool is unable
to identify Alder Lake chipsets.

BUG=b:153888802
TEST=Able to dump FD contains correctly with platform quirks on Brya Platform.
> ifdtool -d coreboot.rom -p adl

PCH Revision: 500 series Tiger Point/ 600 series Alder Point

Change-Id: I25f69ce775454409974056d8326c02e29038ec8a
Signed-off-by: Subrata Banik 
---
M util/ifdtool/ifdtool.c
M util/ifdtool/ifdtool.h
2 files changed, 39 insertions(+), 71 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/54305/7