src/mainboard: Remove unnecessary whitespace

Change-Id: I35cb7e08d5233aa5a3dbb4631ab2ee4dc9596f98
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16849
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
15 files changed