Merge changes from topic "b113052379-cp-from-pi-dev-p1"

* changes:
  Camera: update hardware level related docs
  Fix copy/paste error
  Annotate remaining AMEDIAFORMAT variables
  Add __INTRODUCED_IN to more NdkMediaFormat.h variables
  Add __INTRODUCED_IN to NdkMediaFormat.h variables too.
  Add __INTRODUCED_IN to audio/camera/media headers.
  Camera: NDK codegen doc update