Adding AIDL version of AudioControl HAL

- Updated APIs to use strings instead of enum for AudioUsages
- Updated dumpsys commands to take strings for usages instead of
integers

Bug: b/170335834
Test: build and run VTS tests
Change-Id: I1773383812e97e7dee6da2eba250ea842d59b8cb
diff --git a/automotive/audiocontrol/aidl/Android.bp b/automotive/audiocontrol/aidl/Android.bp
new file mode 100644
index 0000000..f8240b1
--- /dev/null
+++ b/automotive/audiocontrol/aidl/Android.bp
@@ -0,0 +1,13 @@
+// This is the expected build file, but it may not be right in all cases
+
+aidl_interface {
+    name: "android.hardware.automotive.audiocontrol",
+    vendor_available: true,
+    srcs: ["android/hardware/automotive/audiocontrol/*.aidl"],
+    stability: "vintf",
+    backend: {
+        java: {
+            sdk_version: "module_current",
+        },
+    },
+}