Build only the needed run-test shards with "test.py -b -t XXX" am: b7b5fe5b36 am: f3a6cc97d1 am: f5cfd6b435

Original change: https://android-review.googlesource.com/c/platform/art/+/2209544

Change-Id: I42470442d48cf50ec64507e5f236360cdb8ae916
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>