[S] Change in coreboot[main]: drivers/intel/fsp2_0: Add Kconfig option to control MBP HOB creation

[Subrata Banik (Code Review)]

Attention is currently required from: Andrey Petrov, Dinesh Gehlot, Eran Mitrani, Eric Lai, Jakub Czapiga, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Pranava Y N, Rishika Raj, Ronak Kanabar, Subrata Banik, Tarun.

Hello Andrey Petrov, Dinesh Gehlot, Eran Mitrani, Eric Lai, Jakub Czapiga, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Pranava Y N, Rishika Raj, Ronak Kanabar, Tarun, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/84217?usp=email

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

The following approvals got outdated and were removed:
Code-Review+2 by Eric Lai, Verified+1 by build bot (Jenkins)

The change is no longer submittable: Code-Review and Verified are unsatisfied now.

Change subject: drivers/intel/fsp2_0: Add Kconfig option to control MBP HOB creation
......................................................................

drivers/intel/fsp2_0: Add Kconfig option to control MBP HOB creation

This patch adds a new Kconfig option `FSP_PUBLISH_MBP_HOB` to
control the creation of the ME_BIOS_PAYLOAD_HOB (MBP HOB) by FSP.

Disabling this option can improve boot time on platforms that
do not utilize the MBP HOB, such as ChromeOS devices.

The option is disabled by default on ChromeOS and enabled
by default on other platforms.

On ADL-P based platforms, this option is forced to be enabled
as ADL-P FSP relies on MBP HOB for ChipsetInit version for
ChipsetInit sync.

Removed SoC specific implementation of `FSP_PUBLISH_MBP_HOB` config
from MTL and TGL config file.

TEST=Tested on ADL-P and ADL-N platforms. Verified that MBP HOB is
created when `FSP_PUBLISH_MBP_HOB` is enabled and not created when
it is disabled.
Also verified that the system boots successfully in both cases.

Change-Id: I21da00259c0b9bcca6f545291a6259e9cce8d900
Signed-off-by: Subrata Banik 
---
M src/drivers/intel/fsp2_0/Kconfig
M src/soc/intel/alderlake/Kconfig
M src/soc/intel/meteorlake/Kconfig
M src/soc/intel/pantherlake/Kconfig
4 files changed, 16 insertions(+), 26 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/17/84217/2