We're using these scripts to clean up some of the files in 3rdparty.
Moving 3rdparty out of the coreboot repository and into the private
overlays would have required to duplicate these scripts in every
overlay. Instead, move them to coreboot's util/ directory.
BUG=none
TEST=none needed.
BRANCH=none
Change-Id: Ia914a2e23b97381c0490a8a03441caf8d2a0532d
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/47685
Reviewed-by: Gabe Black <gabeblack@chromium.org>
