am c4c42eef: docs: add default value and compatibility info for installLocation

Merge commit 'c4c42eef9a62846a152094d61987e6dd2728e417' into froyo-plus-aosp

* commit 'c4c42eef9a62846a152094d61987e6dd2728e417':
  docs: add default value and compatibility info for installLocation