Add AIDL audio HAL service to SEPolicy

This adds the two top interfaces: IConfig and IModule
to service context, allows the HAL service to call
Binder, and registers the example implementation
service executable.

Bug: 205884982
Test: m
Change-Id: I322e813c96123167ea29b6c25a08ec9677c9b4d1
diff --git a/vendor/file_contexts b/vendor/file_contexts
index 0cfb7cf..5a8d0aa 100644
--- a/vendor/file_contexts
+++ b/vendor/file_contexts
@@ -4,6 +4,7 @@
 /(vendor|system/vendor)/bin/hw/android\.hardware\.atrace@1\.0-service         u:object_r:hal_atrace_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.audio(@2\.0-|\.)service     u:object_r:hal_audio_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.audio@7\.0-service\.example     u:object_r:hal_audio_default_exec:s0
+/(vendor|system/vendor)/bin/hw/android\.hardware\.audio\.service-aidl.example     u:object_r:hal_audio_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.automotive\.audiocontrol@1\.0-service    u:object_r:hal_audiocontrol_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.automotive\.audiocontrol@2\.0-service    u:object_r:hal_audiocontrol_default_exec:s0
 /(vendor|system/vendor)/bin/hw/android\.hardware\.automotive\.audiocontrol-service.example u:object_r:hal_audiocontrol_default_exec:s0