[S] Change in coreboot[master]: mb/google/myst: Enable variants for Myst

[Jon Murphy (Code Review)]

Attention is currently required from: Raul Rangel, Jon Murphy, Mark Hasemeyer.

Hello build bot (Jenkins), Raul Rangel, Eric Lai, Tim Van Patten, Karthik Ramasubramanian, Mark Hasemeyer,

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

https://review.coreboot.org/c/coreboot/+/74098

to look at the new patch set (#16).

Change subject: mb/google/myst: Enable variants for Myst
......................................................................

mb/google/myst: Enable variants for Myst

BUG=b:270618107
TEST=builds

Signed-off-by: Jon Murphy 
Change-Id: I688e9c2fdf203cecfd5f200dec6cde9dbc0a9aa7
---
M src/mainboard/google/myst/Kconfig
M src/mainboard/google/myst/Makefile.inc
M src/mainboard/google/myst/mainboard.c
A src/mainboard/google/myst/variants/myst/include/variant/ec.h
A src/mainboard/google/myst/variants/myst/overridetree.cb
5 files changed, 32 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/74098/16