[automerger] Merge "Merge "DO NOT MERGE: Bump CTS and CTS Verifier to 5.1_r28" into lollipop-mr1-cts-dev am: 6ebd08b079  -s ours" into marshmallow-cts-dev am: ac28ed58d3  -s ours am: 4210a193c9

Change-Id: Iba43405c7fd8cf242bb4f0e2cd871a7f5a9e493e