Change in coreboot[master]: mb/google/skyrim: Add DXIO descriptors

[Jon Murphy (Code Review)]

Attention is currently required from: Raul Rangel, Jon Murphy, Felix Held.
Hello build bot (Jenkins), Raul Rangel, Karthik Ramasubramanian, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/62903

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

Change subject: mb/google/skyrim: Add DXIO descriptors
......................................................................

mb/google/skyrim: Add DXIO descriptors

Add Skyrim DXIO descriptors using info from AMD and skyrim bouard
shematics.

BUG=b:225179599
TEST=Builds

Signed-off-by: Jon Murphy 
Change-Id: Ib68cf3d64641b006e0f2c4805af22b44a505a0d1
---
M src/mainboard/google/skyrim/port_descriptors.c
M src/mainboard/google/skyrim/variants/baseboard/devicetree.cb
M src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h
3 files changed, 83 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/03/62903/11