CFT: filter - add key discovery path

BUG=None
TEST=cq

Change-Id: Ia0533d6190e6eef1150404e48dc9997c4ee682e0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/4546789
Tested-by: Jaques Clapauch <jaquesc@google.com>
Reviewed-by: Seewai Fu <seewaifu@google.com>
Reviewed-by: Jaques Clapauch <jaquesc@google.com>
1 file changed