Change in coreboot[master]: soc/mediatek/mt8186: Add SPI driver support

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin.
Hello Hung-Te Lin, build bot (Jenkins), Yu-Ping Wu,

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

https://review.coreboot.org/c/coreboot/+/58966

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

Change subject: soc/mediatek/mt8186: Add SPI driver support
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soc/mediatek/mt8186: Add SPI driver support

Add SPI controller drivers.

TEST=build pass
BUG=b:202871018

Signed-off-by: Ruwen Liu 
Change-Id: I59a885c4fa31b6e2921698eaa3b97dbdc3144946
---
M src/soc/mediatek/mt8186/Makefile.inc
M src/soc/mediatek/mt8186/include/soc/spi.h
M src/soc/mediatek/mt8186/spi.c
3 files changed, 140 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/66/58966/3