mb/asus/f2a85-m_pro: Enable keyboard controller in devicetree
The mainboard has a PS/2 port, so enable the keyboard controller in the
devicetree.
The PS/2 keyboard now works in SeaBIOS payload, but not in GNU/Linux,
probably as ACPI code still needs to be added.
Change-Id: I7846633bc1a3bdf6bffae628e0542bb8fb684804
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45998
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>