Change in coreboot[master]: drivers/intel/fsp2_0: Add support for FSP_NON_VOLATILE_STORAGE_HOB2

[Anil Kumar K (Code Review)]

Attention is currently required from: Arthur Heymans, Anil Kumar K, Subrata Banik, Paul Menzel, Andrey Petrov, Patrick Rudolph.
Hello build bot (Jenkins), Jonathan Zhang, Johnny Lin, Tim Wawrzynczak, Subrata Banik, Andrey Petrov, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/59638

to look at the new patch set (#44).

Change subject: drivers/intel/fsp2_0: Add support for FSP_NON_VOLATILE_STORAGE_HOB2
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drivers/intel/fsp2_0: Add support for FSP_NON_VOLATILE_STORAGE_HOB2

FSP 2.3 spec introduced new version of NV storage HOB
FSP_NON_VOLATILE_STORAGE_HOB2. This new HOB addresses the limitation of
FSP_NON_VOLATILE_STORAGE_HOB which can support data length
upto 64KB. FSP_NON_VOLATILE_STORAGE_HOB2 allows >64KB of NVS data to be
stored by specifying a pointer to the NVS data.

FSP_NON_VOLATILE_STORAGE_HOB HOB is deprecated
from FSP 2.3 onwards and is maintained for backward compatibility only.

This patch implements the parsing method for
FSP_NON_VOLATILE_STORAGE_HOB2 HOB structure .The HOB list is first
searched for FSP_NON_VOLATILE_STORAGE_HOB2. If not found we continue
to search for FSP_NON_VOLATILE_STORAGE_HOB HOB.

BUG=b:200113959
TEST=Verified on sapphire rapids and meteor lake FSP platform that
introduces FSP_NON_VOLATILE_STORAGE_HOB2 for retrieving MRC cached data.

Signed-off-by: Anil Kumar 
Signed-off-by: Subrata Banik 
Change-Id: I27647e9ac1a4902256b3f1c34b60e1f0b787a06e
---
M src/drivers/intel/fsp2_0/hand_off_block.c
M src/drivers/intel/fsp2_0/include/fsp/util.h
2 files changed, 21 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/38/59638/44