Allow us to search further in autotest for control files.

The way we generate AU E2E using full_release_test can generate
files up to 4 levels down. This is a no-op to add here and makes
running them easier locally.

BUG=None
TEST=used it

Change-Id: Icffb80e072cc2669ace2f94274a7a7cc44d47aaf
Reviewed-on: https://gerrit.chromium.org/gerrit/65872
Tested-by: Chris Sosa <sosa@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Commit-Queue: Chris Sosa <sosa@chromium.org>
1 file changed