Add support for CTS to ART run-tests running with TradeFed. am: 0d306c40f9

Original change: https://googleplex-android-review.googlesource.com/c/platform/art/+/18469023

Change-Id: Ide56630255917784822525028121680e5d1b327d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>