Change in coreboot[master]: mb/google/brya/var/vell: Add AMP driver setting

[Robert Chen (Code Review)]

Attention is currently required from: Robert Chen.
Robert Chen has uploaded a new patch set (#14) to the change originally created by Shon Wang. ( https://review.coreboot.org/c/coreboot/+/60331 )

Change subject: mb/google/brya/var/vell: Add AMP driver setting
......................................................................

mb/google/brya/var/vell: Add AMP driver setting

update gpio.c
update overridetree.cb
update Kconfig.name

Signed-off-by: Shon Wang 
Change-Id: I96d49bd1a2ba061c4fd52b450b31d0885f49552c
---
M src/mainboard/google/brya/Kconfig.name
M src/mainboard/google/brya/variants/vell/gpio.c
M src/mainboard/google/brya/variants/vell/overridetree.cb
3 files changed, 23 insertions(+), 30 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/60331/14