msm8960: build memtrack HAL

Change-Id: I8374c578dbc991360247ba1ea9391975d645684f
msm8960-common: use legacy audio

Change-Id: Id2ccb05cb0c5681dc4f8589af7144c51c7bd95be
msm8960-common: Make software VP9 video decoder available to MediaCodec.

This change requires the changes in frameworks/av

Change-Id: Ia1e79f62c580160f28a4592097dcfb9422cf7031