Create owner file for appfunctions sidecar

Change-Id: Ic0a69f2cc20fbfea63229979a09ebf906887c23a
diff --git a/libs/appfunctions/OWNERS b/libs/appfunctions/OWNERS
new file mode 100644
index 0000000..c093675
--- /dev/null
+++ b/libs/appfunctions/OWNERS
@@ -0,0 +1,3 @@
+set noparent
+
+include /core/java/android/app/appfunctions/OWNERS