Change in coreboot[master]: soc/mediatek/mt8186: Add DRAM full calibration support

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin.
Hello Hung-Te Lin, build bot (Jenkins), Ryan Chuang,

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

https://review.coreboot.org/c/coreboot/+/60318

to look at the new patch set (#4).

Change subject: soc/mediatek/mt8186: Add DRAM full calibration support
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soc/mediatek/mt8186: Add DRAM full calibration support

Initialize and calibrate DRAM in romstage.
We remove emi.h because emi.h is defined in common/include/soc.

TEST=DRAM full calibration pass.
BUG=b:202871018

Signed-off-by: Ryan Chuang 
Change-Id: Ie1a1e04da0cce9aaf86588a94c64d2242e7cb4b7
---
M src/mainboard/google/corsola/Makefile.inc
M src/mainboard/google/corsola/romstage.c
A src/mainboard/google/corsola/sdram_configs.c
M src/soc/mediatek/mt8186/Kconfig
M src/soc/mediatek/mt8186/Makefile.inc
M src/soc/mediatek/mt8186/emi.c
A src/soc/mediatek/mt8186/include/soc/dramc_param.h
A src/soc/mediatek/mt8186/include/soc/dramc_soc.h
D src/soc/mediatek/mt8186/include/soc/emi.h
9 files changed, 239 insertions(+), 15 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/18/60318/4