[automerger skipped] Drop prebuilt files to android source tree. am: 1883d013ec -s ours

am skip reason: Change-Id I74a042f3fd66d3504710fa3943a29498bcea6b9f with SHA-1 f9d672c16c is in history

Change-Id: I49af0b63e52305defeae15bd214349b405e5e79b