Clean up AMD romstage.c whitespace indent issues

Clean up AMD romstage.c whitespace indent issues

Change-Id: I1713f1a3b548cb8e8ea5cf57eef95486ceb05ab9
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: http://review.coreboot.org/538
Tested-by: build bot (Jenkins)
Reviewed-by: Vikram Narayanan <vikram186@gmail.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>