d2: Enable SELinux

Change-Id: I3d4fda657e5ec6f0148bb53c8e319f7a86008f29
d2: Remove this audio_effect.conf

 * We use the one provided by DSPManager

Change-Id: I4be120d09823a9bb0089963151293b827710b873
d2: Update audio policy

 * Fixup devices

Change-Id: I60620d65ce5fbad6ccd2446f095dd8f0f151ffec
d2: Add VOIP devices

 * Also remove some cruft

Change-Id: I98c44864814335d880bff9a2907e4550b9ee2d83