Merge "Merge "DO NOT MERGE: Bump CTS and CTS Verifier to 5.1_r21" into lollipop-mr1-cts-dev am: 3cf482f1aa  -s ours" into marshmallow-cts-dev am: 2fe51274db  -s ours am: 034b4fe6b3 am: c905e844e1 am: 6ffd506feb am: e14e19968b  -s ours am: 86932477bb am: 2056de0f29 am: 065e20ae8c am: c4a2d29821 am: 9ee582f644  -s ours am: 851299d7cd
am: 1bff79f90f

Change-Id: Ife7de7531d2bfd92a328fb76661c8da50d8cbca0