audio hal: fix audio leak when disconnecting A2DP sink am: f030fe8ae0 am: d620d11473 am: 87d923e750

Change-Id: I99d96b0f8e99d663114ce73bc52fdeb6f668703d
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..d97975c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: NOTICE
+}