[L] Change in coreboot[main]: mb/google/brox: Update storage settings for SSD and UFS

[Ivy Jian (Code Review)]

Attention is currently required from: Ivy Jian, Karthik Ramasubramanian, Shelley Chen.

Hello Karthik Ramasubramanian, Shelley Chen, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/79295?usp=email

to look at the new patch set (#3).

The following approvals got outdated and were removed:
Code-Review+1 by Shelley Chen, Verified+1 by build bot (Jenkins)

Change subject: mb/google/brox: Update storage settings for SSD and UFS
......................................................................

mb/google/brox: Update storage settings for SSD and UFS

Brox has SSD and UFS storage per different SKU.
1. Set SSD on CPU PCIe port (PCIEX4_A) and configured related gpio
settings.
2. Enable UFS, also enable ISH since it is PCI function 0, required
for UFS function 7 to be enabled.
3. Set unused SRCCLKREQ signals to NC.
4. Remove unused gpio settings in variant gpio table to prevent
unexpect overrides.

BUG=b:311450057
BRANCH=None
TEST=emerge-brox coreboot

Change-Id: I88922bcfa13652006aa10078c3c444624fd4575e
Signed-off-by: Ivy Jian 
---
M src/mainboard/google/brox/Kconfig
M src/mainboard/google/brox/variants/baseboard/brox/devicetree.cb
M src/mainboard/google/brox/variants/baseboard/brox/gpio.c
M src/mainboard/google/brox/variants/brox/gpio.c
4 files changed, 38 insertions(+), 220 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/95/79295/3