Change in coreboot[master]: drivers/intel/fsp2_0: Make FSP Notify Phase APIs optional

[Subrata Banik (Code Review)]

Attention is currently required from: Felix Singer, Tim Wawrzynczak, Nick Vaccaro, Andrey Petrov, Patrick Rudolph, EricR Lai.
Hello Felix Singer, build bot (Jenkins), Tim Wawrzynczak, Angel Pons, Nick Vaccaro, Andrey Petrov, Patrick Rudolph, EricR Lai,

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

https://review.coreboot.org/c/coreboot/+/60402

to look at the new patch set (#9).

Change subject: drivers/intel/fsp2_0: Make FSP Notify Phase APIs optional
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drivers/intel/fsp2_0: Make FSP Notify Phase APIs optional

The FSP API is used to notify the FSP about different phases
in the boot process. The current FSP specification supports
three notify phases:
 - Post PCI enumeration
 - Ready to Boot
 - End of Firmware

This patch attempts to make FSP Notify Phase APIs optional
by using native coreboot implementations to perform the
required lock down and chipset register configuration prior
boot to payload.

BUG=b:211954778
TEST=Able to build brya without any compilation issue and coreboot
log with this code changes when SKIP_FSP_NOTIFY_PHASE_READY_TO_BOOT
and SKIP_FSP_NOTIFY_PHASE_END_OF_FIRMWARE config enabled.

coreboot skipped calling FSP notify phase: 00000040.
coreboot skipped calling FSP notify phase: 000000f0.

Signed-off-by: Subrata Banik 
Change-Id: Ia95e9ec25ae797f2ac8e1c74145cf21e59867d64
---
M src/drivers/intel/fsp2_0/Kconfig
M src/drivers/intel/fsp2_0/notify.c
2 files changed, 45 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/02/60402/9