shinano: Add msm8974 policy HAL, audiod

Change-Id: Ie1ed8d357ac6f1fba77381a6cd160f819328435d
shinano: Add Qualcomm audio effects

Change-Id: I7823bad9f64e5be6253e4db0944fa07993e64ddc
shinano: Enable audio offload

Change-Id: Ia25f7d9da1d2f11c6ac86600f31abe1f2004920a