[automerger skipped] Merge "DO NOT MERGE: Bump CTS and CTS Verifier to 6.0_r31" into marshmallow-cts-dev am: d333a47e -s ours skipped: 889cf929 skipped: cf805a54 skipped: 5f90a282 Change-Id: Idb6209d1575b0b9e0850347ef977b86e4f916e8d