Revert "Revert "Enable smooth-streaming video-playback""

* The issues it had should now be fixed in media-caf sources.

This reverts commit 837f6b5da541e3ed9c98a1a56ebc12eb7cd054b3.

Change-Id: Ib0928df5bfbcb09c80e4a9e2d5cea67a1097cac9