Change in coreboot[master]: mb/google/guybrush/dewatt: Add variant to disable HDMI

[Bao Zheng (Code Review)]

Attention is currently required from: Bao Zheng, Jason Glenesk, Marshall Dawson, Zheng Bao, Patrick Huang, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Marshall Dawson, Paul Menzel, Zheng Bao, Chris Wang, Eric Peers, Patrick Huang, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/61260

to look at the new patch set (#8).

Change subject: mb/google/guybrush/dewatt: Add variant to disable HDMI
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mb/google/guybrush/dewatt: Add variant to disable HDMI

For one specific type of APU, it doesn't have HDMI. When we detect
this APU, we need to explicitly disable HDMI in DDI settings,
otherwise the system would freeze.

get_cpu_count() == 4 && get_threads_per_core() == 2: This case is for
2 Core and 4 Thread CPU (2C/4T for short).
get_cpu_count() == 2: This is for 2C/2T.

BUG=b:208677293

Change-Id: I8d0fa96818a768b7960d92821b927dbc622675ae
Signed-off-by: Zheng Bao 
---
M src/mainboard/google/guybrush/variants/dewatt/Makefile.inc
A src/mainboard/google/guybrush/variants/dewatt/variant.c
2 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/60/61260/8