Turn on GrallocSync feature. am: 6d99fa2661 am: 1f62a17baf
am: 0f0ec7edec

* commit '0f0ec7edec35a26bf0a21847a6ad9ee117eea9be':
  Turn on GrallocSync feature.

Change-Id: I841aa09893266e84d528a3adcc03d8f7c19fc8e9