mb/google/guybrush: Enable some PCIe power saving features

Enable ASPM, Common Clock and Clock Power Managment. Accomplish this
by adding the options in the platform Kconfig as well as dxio
descriptors.

BUG=b:187743927
TEST=Boot to ChromeOS and see ASPM, CC and Clock PM enabled with lspci

Change-Id: Iefc4b5b489cb8caf59f21dd4333d7af66ba47c32
Signed-off-by: Matt Papageorge <matthewpapa07@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54282
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions