Merge changes from topic 'am-ab5a4652666d48ceb062fc19a935f1c6' into nyc-mr2-dev-plus-aosp

* changes:
  Increment package revision for 2017-02 samples release am: 49453c6ceb am: 687e7b105f am: 99bfeb590e
  Update sample prebults for 2017-02 release (nyc-mr1-dev) am: 8a66f8cbc0 am: b2c8c7c8d8 am: 6591a0c52e