Added builder-model (Android Gradle plug-in) v0.13.0 to prebuilts.

Change-Id: I7c3d20033f87152488212d71fdb2ab8a80aaf2d5
Merge "Added builder-model (Android Gradle plug-in) v0.13.0 to prebuilts." into idea133
Merge "Added builder-model (Android Gradle plug-in) v0.13.0 to prebuilts." into idea133
automerge: e18679f

* commit 'e18679f1a87dfb00bbf884644a76fe993eff82c6':
  Added builder-model (Android Gradle plug-in) v0.13.0 to prebuilts.