[XL] Change in coreboot[main]: mb/amd/birman_plus: Add Birman+ board support for Phoenix SOC

[Anand Vaikar (Code Review)]

Attention is currently required from: Anand Vaikar, Felix Held, Fred Reitberger, Jason Glenesk, Martin L Roth, Paul Menzel.

Hello Felix Held, Fred Reitberger, Jason Glenesk, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/80353?usp=email

to look at the new patch set (#13).

Change subject: mb/amd/birman_plus: Add Birman+ board support for Phoenix SOC
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mb/amd/birman_plus: Add Birman+ board support for Phoenix SOC

1) Initial commit for upstreaming Birmanplus mainboard changes.
2) Add the DXIO descriptors for Birmanplus mainboard.

Change-Id: I075dcf0214f8dc8b33b0e429d83d270b2f0952e1
Signed-off-by: Anand Vaikar 
---
M src/mainboard/amd/birman/Kconfig
A src/mainboard/amd/birman_plus/Kconfig
A src/mainboard/amd/birman_plus/Kconfig.name
A src/mainboard/amd/birman_plus/Makefile.mk
A src/mainboard/amd/birman_plus/board_info.txt
A src/mainboard/amd/birman_plus/board_phoenix.fmd
A src/mainboard/amd/birman_plus/bootblock.c
A src/mainboard/amd/birman_plus/chromeos.c
A src/mainboard/amd/birman_plus/chromeos_phoenix.fmd
A src/mainboard/amd/birman_plus/devicetree_phoenix.cb
A src/mainboard/amd/birman_plus/dsdt.asl
A src/mainboard/amd/birman_plus/early_gpio.c
A src/mainboard/amd/birman_plus/ec.c
A src/mainboard/amd/birman_plus/ec.h
A src/mainboard/amd/birman_plus/gpio.c
A src/mainboard/amd/birman_plus/gpio.h
A src/mainboard/amd/birman_plus/mainboard.c
A src/mainboard/amd/birman_plus/port_descriptors.c
18 files changed, 1,346 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/80353/13