[coreboot-gerrit] Change in coreboot[master]: soc/mediatek/mt8192: add spmfw loader

[Yidi Lin (Code Review)]

Hello Hung-Te Lin, build bot (Jenkins), Roger Lu, Patrick Georgi, Martin Roth, Roger Lu, Nicolas Boichat,

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

https://review.coreboot.org/c/coreboot/+/46389

to look at the new patch set (#35).

Change subject: soc/mediatek/mt8192: add spmfw loader
......................................................................

soc/mediatek/mt8192: add spmfw 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.

BUG=b:159079649
TEST=suspend with command `powerd_dbus_suspend` and
     wake up the DUT by powerkey

Signed-off-by: Roger Lu 
Change-Id: I6478b98f426d2f3e0ee919d37d21d909ae8a6371
---
M src/mainboard/google/asurada/mainboard.c
M src/soc/mediatek/mt8192/Kconfig
M src/soc/mediatek/mt8192/Makefile.inc
M src/soc/mediatek/mt8192/include/soc/spm.h
A src/soc/mediatek/mt8192/spm.c
5 files changed, 1,143 insertions(+), 31 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/46389/35