Merge "Camera: update NDK metadata tag documents" into nyc-dev am: 7e038c3072
am: a151b4f251

* commit 'a151b4f251ed06a0a03849e1da77039a47a904f7':
  Camera: update NDK metadata tag documents

Change-Id: Id9216a63b856219b311aad05a8709dca850dc74b