[L] Change in coreboot[master]: mb/system76/adl-p: Add Galago Pro 6 as a variant

[Tim Crawford (Code Review)]

Attention is currently required from: Jeremy Soller.

Hello Jeremy Soller,

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

https://review.coreboot.org/c/coreboot/+/69211

to look at the new patch set (#3).

Change subject: mb/system76/adl-p: Add Galago Pro 6 as a variant
......................................................................

mb/system76/adl-p: Add Galago Pro 6 as a variant

The Galago Pro 6 (galp6) is an Alder Lake-P board.

Tested with a custom edk2 UefiPayloadPkg.

Working:

- PS/2 keyboard, touchpad
- Both DIMM slots (with NMSO480E82-3200EA00)
- M.2 NVMe SSD (with MZVL2500HCJQ)
- All USB ports
- All USB ports
- SD card reader
- Webcam
- Ethernet
- WiFi/Bluetooth
- Integrated graphics using Intel GOP driver
- Backlight controls on Windows 10 and Linux 6.1
- HDMI output
- DisplayPort output over USB-C
- Internal microphone
- Internal speakers
- Combined headphone + mic 3.5mm audio
- S0ix suspend/resume
- Booting Pop!_OS Linux 22.04 with kernel 6.0.6
- Internal flashing with flashrom v1.2-1087-gde016a17

Not working:

- Detection of devices in TBT slot on boot

Change-Id: I8940fb3777d7f18393ef50baec32f9445b375648
Signed-off-by: Tim Crawford 
---
M Documentation/mainboard/index.md
A Documentation/mainboard/system76/galp6.md
M src/mainboard/system76/adl-p/Kconfig
M src/mainboard/system76/adl-p/Kconfig.name
A src/mainboard/system76/adl-p/variants/galp6/board_info.txt
A src/mainboard/system76/adl-p/variants/galp6/data.vbt
A src/mainboard/system76/adl-p/variants/galp6/gpio.c
A src/mainboard/system76/adl-p/variants/galp6/gpio_early.c
A src/mainboard/system76/adl-p/variants/galp6/hda_verb.c
A src/mainboard/system76/adl-p/variants/galp6/overridetree.cb
A src/mainboard/system76/adl-p/variants/galp6/romstage.c
11 files changed, 586 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/69211/3