audio: add sepolicy for getting thermal event

type=1400 audit(0.0:15): avc: denied { call } for scontext=u:r:hal_audio_default:s0
tcontext=u:r:hal_thermal_default:s0 tclass=binder permissive=1

type=1400 audit(0.0:16): avc: denied { transfer } for scontext=u:r:hal_audio_default:s0
tcontext=u:r:hal_thermal_default:s0 tclass=binder permissive=1

Bug: 204271308
Test: build pass

Signed-off-by: Jasmine Cha <chajasmine@google.com>
Change-Id: I73070815b1ab73a58fd776e1301a5d4a8e198109