src/mainboard: Add space after 'if'

Change-Id: Icae1983be6b8c5aebb121be8a383e2613e064122
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26462
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
27 files changed