Default implementation for AudioControl AIDL HAL

Bug: b/170335834
Test: Built in target and ran `adb shell dumpsys
android.hardware.automotive.audiocontrol.IAudioControl/default` commands

Change-Id: Iccf5784fce7635c78ca8cc0f9066b4dc9f24b3bd
diff --git a/automotive/audiocontrol/aidl/default/audiocontrol-default.rc b/automotive/audiocontrol/aidl/default/audiocontrol-default.rc
new file mode 100644
index 0000000..88d180d
--- /dev/null
+++ b/automotive/audiocontrol/aidl/default/audiocontrol-default.rc
@@ -0,0 +1,4 @@
+service vendor.audiocontrol-default /vendor/bin/hw/android.hardware.automotive.audiocontrol-service.example
+    class hal
+    user audioserver
+    group system