Add support for ASUS F2A85-M board

The patch is based on Thatcher board. So far it boots Linux (3.2/3.7),
internal network adapter works, AHCI works. External PCI/PCIe slots
works too. Power management/ACPI seems to work.

Internal VGA works with dumped ROM (VGA/DVI), but lacks GART.

PCI pref devices are being relocated by Linux, reason unknown.

This is a good start.

USB and XHCI untested but visible.

Change-Id: I1869aecb2634d548b00b3c9139517d6a0e0c9817
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Reviewed-on: http://review.coreboot.org/2038
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
27 files changed