This removes quite a bit of boilerplate from the script, and makes
it easier to read.
Change-Id: I92348b810ff19f7d18810f842b76e0e595b3d397
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/10435
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>