Merge "CameraNDK: fill in more NDK API documents" into nyc-dev am: b7444b1d60 am: 40687b3ab4
am: aa9bc9c0bc

* commit 'aa9bc9c0bc27eab90b1b7f1d35d4273e990d6e62':
  CameraNDK: fill in more NDK API documents

Change-Id: Ibe98cdccbf584f3c9f9cdfe50eaed0cebdfc6772