Change in coreboot[master]: soc/mediatek/mt8186: add NOR-Flash GPIO setting in soc folder

[Rex-BC Chen (Code Review)]

Attention is currently required from: Rex-BC Chen.
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/+/58935

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

Change subject: soc/mediatek/mt8186: add NOR-Flash GPIO setting in soc folder
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soc/mediatek/mt8186: add NOR-Flash GPIO setting in soc folder

The NOR-Flash can be configured on SPI0 or TDM-RX GPIOs so
we have to provide an init function in SoC for the mainboard
to select right config.

TEST=boot to romstage
BUG=b:202871018

Signed-off-by: Rex-BC Chen 
Change-Id: I285ec64ace8b72a48ef1d481d366bd67cb9b0337
---
M src/soc/mediatek/mt8186/include/soc/spi.h
M src/soc/mediatek/mt8186/spi.c
2 files changed, 47 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/35/58935/2