northbridge/amd/amdfam10: Improve code formatting

Change-Id: I86a252598666af635281eaa467020acb53d71c77
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16642
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
13 files changed