audio: Add TEST_MAPPING for presubmit testing

Currently it lists only tests for the core HAL, will
add effect HAL tests in a separate CL.

Bug: 205884982
Test: atest VtsHalAudioCoreTargetTest
Change-Id: I92705f44235ff0fe38cbf86fef07518277b5f3ce
diff --git a/audio/aidl/TEST_MAPPING b/audio/aidl/TEST_MAPPING
new file mode 100644
index 0000000..6473d23
--- /dev/null
+++ b/audio/aidl/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "VtsHalAudioCoreTargetTest"
+    }
+  ]
+}