Don't warn on Kconfig.orig and Kconfig~ files when trying to verify that all the Kconfig files in the coreboot source tree are being loaded. Change-Id: Ie7babe60b29735e5ccc5f93f4e42ad82dfb47044 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/13462 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>