[coreboot] [RFH] Native AMD fam10-15 support

[Taiidan at gmx.com]

Another regression I have noticed is that my 4th SATA hard drive doesn't
appear in linux for some reason, although it does appear in grub...ideas?

Also kyosti what logs and tests would you like? For now I have
re-flashed my old 4.6 coreboot but I will flash master again soon for you.

Tim - Yes I have CC6 enabled in my CMOS and my CMOS.default