AMD Fam14 boards: reduce unnecessary differences, 2nd attempt

This patch reduces unnecessary differences between AMD Inagua, Persimmon,
Union Station, South Station and Asrock E350M1. It's only cosmetical, but
makes them a little bit easier to compare.

This is the remainder of the original http://review.coreboot.org/2464,
parts of which somehow got lost in a flurry of refactoring and splitting
patches.

Change-Id: I034228be9edaaa4122506763d7bb4158f8e0ec53
Signed-off-by: Jens Rottmann <JRottmann@LiPPERTembedded.de>
Reviewed-on: http://review.coreboot.org/2529
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
6 files changed