[L] Change in coreboot[main]: mb/google/guybrush: Update DXIO descriptor definition

[Jon Murphy (Code Review)]

Attention is currently required from: Jason Nien, Martin Roth.

Hello Jason Nien, Martin Roth,

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

https://review.coreboot.org/c/coreboot/+/79792?usp=email

to look at the new patch set (#2).

Change subject: mb/google/guybrush: Update DXIO descriptor definition
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mb/google/guybrush: Update DXIO descriptor definition

Update definition to be more intuitive and extensible.
Port descriptors will be defined as individual entities and added
to the descriptor list as such.

BUG=b:281059446
TEST=builds

Change-Id: I6a61d6561304782de847f6b99c9a73292e12b33f
Signed-off-by: Jon Murphy 
---
M src/mainboard/google/guybrush/port_descriptors.c
M src/mainboard/google/guybrush/variants/baseboard/Makefile.inc
A src/mainboard/google/guybrush/variants/baseboard/include/baseboard/port_descriptors.h
M src/mainboard/google/guybrush/variants/baseboard/include/baseboard/variants.h
A src/mainboard/google/guybrush/variants/baseboard/port_descriptors.c
5 files changed, 143 insertions(+), 119 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/92/79792/2