Change in coreboot[master]: soc/intel/alderlake: Disable FSP debug output if !FSP_ENABLE_SERIAL_D...

[Subrata Banik (Code Review)]

Attention is currently required from: Tim Wawrzynczak, Arthur Heymans, Nick Vaccaro, Eric Lai.
Hello build bot (Jenkins), Tim Wawrzynczak, Nick Vaccaro, Arthur Heymans, Eric Lai,

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

https://review.coreboot.org/c/coreboot/+/63167

to look at the new patch set (#3).

Change subject: soc/intel/alderlake: Disable FSP debug output if !FSP_ENABLE_SERIAL_DEBUG
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soc/intel/alderlake: Disable FSP debug output if !FSP_ENABLE_SERIAL_DEBUG

This patch binds all FSP-M and FSP-S UPDs required for serial
redirection with `FSP_ENABLE_SERIAL_DEBUG` config to allow coreboot to
choose when to enable FSP debug output redirection to serial port.
For example:
PcdSerialDebugLevel => For controlling FSP debug level between FSP-M/S
SerialDebugMrcLevel => For controllig MRC debug level.

With this change FSP debug output will only be enabled when the user
enables `FSP_ENABLE_SERIAL_DEBUG` from site-local config with coreboot
serial image.

BUG=b:225544587
TEST=Able to build and boot brya. Also, the FSP debug log is exactly
the same before and with this code change.

Signed-off-by: Subrata Banik 
Change-Id: I779c56b8b0fdebf45ea85b3b456a2d8066e26489
---
M src/soc/intel/alderlake/fsp_params.c
M src/soc/intel/alderlake/romstage/fsp_params.c
2 files changed, 21 insertions(+), 9 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/63167/3