[M] Change in coreboot[main]: soc/mediatek: Add support for MediaTek firmware support package

[Yidi Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Yidi Lin, Yu-Ping Wu.

Hello Hung-Te Lin, Yu-Ping Wu, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/85665?usp=email

to look at the new patch set (#6).

The following approvals got outdated and were removed:
Verified-1 by build bot (Jenkins)

Change subject: soc/mediatek: Add support for MediaTek firmware support package
......................................................................

soc/mediatek: Add support for MediaTek firmware support package

Starting from MT8196, MediaTek platform introudces a new blob named
MediaTek firmware support package (mtk-fsp). The features of mtk-fsp
include but not limit to,
- Security settings, e.g: Device Access Proctection Control, Security
  Memory Protection Unit.
- Initialization for advanced CPU frequency control.

This patch implements APIs for
1) Exchanging data between coreboot and mtk-fsp.
2) Loading and running the mtk-fsp blob at a specific bootstage.

BUG=b:373797027
TEST=emerge-rauru coreboot; Run mock blob and return from mock blob.

Change-Id: Idef3518f9763fe5f74adb459c137db164563e483
Signed-off-by: Yidi Lin 
---
A src/soc/mediatek/common/include/soc/mtk_fsp.h
A src/soc/mediatek/common/include/soc/mtk_fsp_common.h
A src/soc/mediatek/common/mtk_fsp.c
M src/soc/mediatek/mt8196/Makefile.mk
4 files changed, 184 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/85665/6