[coreboot] Patch merged into coreboot/master: ac9431d mainboard: Add AMD unionstation RDK support

the following patch was just integrated into master:
commit ac9431d26ba477811c2e27c8ee1a70109ca671fb
Author: Kerry Sheh 
Date:   Tue Nov 15 21:27:57 2011 +0800

mainboard: Add AMD unionstation RDK support

AMD unionstation Reference Design Kit is Designed for hd settop box application.
    This platform using family14 APU, SB800 southbridge.
    Vgabios is required, can download vgabios from AMD NDA website.
    Verified Feature:
     HDMI, LAN, mini-pcie slots, sata, usb, analog audio and
     optical fiber digital audio output.

Change-Id: Ib1d1d8c889d6fb29f4298b57dfe5c5c1cea1431c
    Signed-off-by: Kerry She 
    Signed-off-by: Kerry She

Build-Tested: build bot (Jenkins) at Tue Nov 15 14:43:53 2011, giving +1
Reviewed-By: Marc Jones  at Fri Nov 18 21:43:19 2011, giving +2
See http://review.coreboot.org/434 for details.

-gerrit