mb/system76/rpl: Add Oryx Pro 12 as a variant

mb/system76/rpl: Add Oryx Pro 12 as a variant

The Oryx Pro 12 (oryp12) is a Raptor Lake-HX board.

Tested with a custom edk2 UefiPayloadPkg.

Working:

- PS/2 keyboard
- I2C HID touchpad
- Both DIMM slots (with Crucial CT8G48C40S5)
- M.2 NVMe SSDs
- MicroSD card reader
- Webcam
- Ethernet
- WiFi/Bluetooth
- Integrated graphics using Intel GOP driver
- Backlight controls on Linux 6.8
- Internal microphone
- Internal speakers
- Combined headset + mic 3.5mm audio
- 3.5mm microphone input
- S3 suspend/resume
- Booting Pop!_OS Linux 22.04 with kernel 6.8.0
- TPM 2.0 device

Not working:

- Discrete/Hybrid graphics
- Thunderbolt

Change-Id: I11cf2dbd1512ebae44e0109bdb78e6eafa027444
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82596
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>