Android 4.2 CTS release 2
am 9fdf671d: Add LOCAL_ADDITIONAL_HTML_DIR to clear_vars for devsite docs builds.

# Via Dirk Dougherty
* commit '9fdf671d7f8fb96c1a8d3b41aaf4478e7274e45f':
  Add LOCAL_ADDITIONAL_HTML_DIR to clear_vars for devsite docs builds.