mainboard/asus/p3b-f: Reintroduce as variant of p2b

Fold this last ASUS 440BX board into the P2B family, while bringing in
some changes:

- Devicetree becomes overridetree.
- Remove non-existent IR device and disable ACPI device on Super I/O to
  match OEM firmware.
- Add SB GPO settings from OEM firmware to devicetree. This disables
  the SPD enabling magic this board needs. By moving the enabling part
  to bootblock the hacky enable_spd hook can be eliminated.
- Initialize the serial port in bootblock, like the other boards.

Boot tested on hardware.

Change-Id: I65f2cb9d1bd4c82550de43889e3502526a46bd18
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41047
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions