Change in coreboot[master]: mediatek/mt8183: Add DDR driver of runtime config part

[Tristan Hsieh (Code Review)]

Hello build bot (Jenkins),

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

https://review.coreboot.org/28844

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

Change subject: mediatek/mt8183: Add DDR driver of runtime config part
......................................................................

mediatek/mt8183: Add DDR driver of runtime config part

BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui, and inits DRAM successfully with related
     patches.

Change-Id: Id1e8862ff6feb9628d37fe5300780ff56865a563
Signed-off-by: Huayang Duan 
---
M src/soc/mediatek/mt8183/dramc_pi_basic_api.c
M src/soc/mediatek/mt8183/dramc_pi_calibration_api.c
M src/soc/mediatek/mt8183/emi.c
M src/soc/mediatek/mt8183/include/soc/dramc_pi_api.h
4 files changed, 228 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/28844/2