[XL] Change in coreboot[main]: soc/meidatek/mt8196: Add SPM loader

[Ccong Chen (Code Review)]

Attention is currently required from: Ccong Chen, Hung-Te Lin.

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

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

https://review.coreboot.org/c/coreboot/+/85599?usp=email

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

The following approvals got outdated and were removed: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

Change subject: soc/meidatek/mt8196: Add SPM loader
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soc/meidatek/mt8196: Add SPM loader

This patch adds support for loading SPM firmware from CBFS to SPM SRAM.
SPM needs its own firmware to enable SPM suspend/resume function which
turns off several resources such as DRAM/mainpll/26M clk when linux
system suspend.

coreboot log:
CBFS: Found 'spm_firmware.pm' @0xadf00 size 0x5a60 in mcache @0xfffdd3c
mtk_init_mcu: Loaded (and reset) spm_firmware.pm in 3 msecs (30080 byt)

TEST=build pass
BUG=348147674

Change-Id: Ie09346f46cb734c74776b760485e7f35d4357e5e
Signed-off-by: Wenzhen Yu 
---
M src/soc/mediatek/common/Kconfig
M src/soc/mediatek/common/spm.c
M src/soc/mediatek/mt8196/Kconfig
M src/soc/mediatek/mt8196/Makefile.mk
M src/soc/mediatek/mt8196/include/soc/addressmap.h
M src/soc/mediatek/mt8196/include/soc/pll.h
M src/soc/mediatek/mt8196/include/soc/spm.h
A src/soc/mediatek/mt8196/spm.c
8 files changed, 1,369 insertions(+), 175 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/99/85599/2