Merge changes Ie06e73e5,I7ac6b5b0

* changes:
  free all buffers when ANativeWindow::disconnect is called
  return correct value from query after connecting a surface
tree: 7fecf03d81e157e82d0d6c0a633df92caeff9d91
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/