am 4fabcc75: am 0d21ec5c: (-s ours) am 4fe2d033: (-s ours) Sync sample prebuilts for mnc-preview-docs (DO NOT MERGE)

* commit '4fabcc75adade157349b5564d05004d73f7aa00f':
  Sync sample prebuilts for mnc-preview-docs (DO NOT MERGE)