Add Linux kernel's checkpatch.pl script

Carefully staging to enable checkpatch for coreboot contributions.

The biggest offender of the rules enforced by checkpatch I have found so
far is ... Oh, you guessed it? It's checkpatch itself.

Change-Id: Iaacbcd52c3bc22b083a24127a3ea17a7cc706245
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/8417
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2 files changed