Change in coreboot[master]: mb/google/brya/var/vell: update overridetree

[Shon Wang (Code Review)]

Attention is currently required from: Kevin Chiu, Tim Wawrzynczak, Paul Menzel, Wisley Chen.
Shon Wang has uploaded a new patch set (#8) to the change originally created by Kevin Chiu. ( https://review.coreboot.org/c/coreboot/+/59304 )

Change subject: mb/google/brya/var/vell: update overridetree
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mb/google/brya/var/vell: update overridetree

Init basic override devicetree based on schematice

BUG=b:205908918
TEST=emerge-brya coreboot

Change-Id: Ibaa910eb1c5584197907963781258035c668298e
Signed-off-by: Kevin Chiu 
---
M src/mainboard/google/brya/Kconfig.name
M src/mainboard/google/brya/variants/vell/overridetree.cb
2 files changed, 371 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/04/59304/8