audio_policy: add voip devices

Change-Id: I81677c1637607fb27293d42d9db8a397b5a18cd1
add second rild service for dual-sim devices

Should make testing easier on V880E/V889D etc.

Change-Id: I3df4178b1008ec0ce2814a1c0bb28e3d102c4be3
remove unneeded screen off animation overlays

Change-Id: I31438ce1d0f5e5b15825b925c47e930b5f5687bc