[S] Change in coreboot[master]: mb/google/myst: Add smihandler

[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/+/74100

to look at the new patch set (#21).

Change subject: mb/google/myst: Add smihandler
......................................................................

mb/google/myst: Add smihandler

Add SMI handler code for Myst platform.

BUG=b:275858191
TEST=builds

Signed-off-by: Jon Murphy 
Change-Id: I92e5e6aef7ab0b84a96d976e29ebf96b56f6f1a1
---
M src/mainboard/google/myst/variants/baseboard/Makefile.inc
A src/mainboard/google/myst/variants/baseboard/smihandler.c
2 files changed, 36 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/74100/21