Add more display hals

Change-Id: I8908c3d2952095fff753aff8f56e317f2d4d3243
switch back to prebuilt audio_policy.conf

Change-Id: I9eb752144cad5cacfcc40e91be862ffd859447d3
Switched back to audio-legacy to try and fix VOIP issues

Change-Id: I007df39ca8d05541ce03f84c2dbf69856c61f764
forgot to add prebuilt audio_policy.conf to configs

Change-Id: Ib3a76a71ecab2e057724aef3d1127a1c11388956