Change in coreboot[master]: mb/google/guybrush: Enable PCIe L1 Substates

[Matt Papageorge (Code Review)]

Attention is currently required from: Jason Glenesk, Martin Roth, Furquan Shaikh, Marshall Dawson, Nikolai Vyssotski, Matt Papageorge, Felix Held.
Hello Jason Glenesk, build bot (Jenkins), Raul Rangel, Martin Roth, Furquan Shaikh, Marshall Dawson, Nikolai Vyssotski, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/54303

to look at the new patch set (#7).

Change subject: mb/google/guybrush: Enable PCIe L1 Substates
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mb/google/guybrush: Enable PCIe L1 Substates

This change enables L1.1 and L1.2 on all real Guybrush PCIe devices.

BUG=b:188123142
TEST=Boot to ChromeOS and verify L1SS are functional by dumping the
settings with "lspci -vv". Leave system on for 20 minutes and no hang.
Also perform 20 reboots and suspend operations

Cq-Depend: chrome-internal:4012927
Change-Id: I40d19be78bfcb9a30fb59f48530a4413dadbefbc
Signed-off-by: Matt Papageorge 
---
M src/mainboard/google/guybrush/Kconfig
M src/mainboard/google/guybrush/port_descriptors.c
2 files changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/54303/7