Change in coreboot[master]: mb/google/nissa/var/nivviks: Add support for NVMe and UFS

[Reka Norman (Code Review)]

Attention is currently required from: Tim Wawrzynczak.
Hello build bot (Jenkins), Kangheui Won, Tim Wawrzynczak, Eric Lai,

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

https://review.coreboot.org/c/coreboot/+/64211

to look at the new patch set (#11).

Change subject: mb/google/nissa/var/nivviks: Add support for NVMe and UFS
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mb/google/nissa/var/nivviks: Add support for NVMe and UFS

Enable either eMMC, NVMe or UFS based on fw_config. NVMe and UFS are
only supported on nirwen, an additional nissa variant based on nivviks
and sharing the nivviks coreboot target.

BUG=b:218929856
TEST=Boot to OS on nivviks to check that eMMC still works. NVMe and UFS
will be tested once nirwen boards are available.

Change-Id: Ibdb122ef35920c962d7bd9f3f238a5d548112282
Signed-off-by: Reka Norman 
---
M src/mainboard/google/brya/variants/baseboard/nissa/devicetree.cb
M src/mainboard/google/brya/variants/nivviks/fw_config.c
M src/mainboard/google/brya/variants/nivviks/gpio.c
M src/mainboard/google/brya/variants/nivviks/overridetree.cb
4 files changed, 83 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/64211/11