Add default code reviewers into OWNERS

Bug: 33166666
Test: gerrit uploader
Change-Id: I4111a8e73acfb1d7d04e229459b9a3d3e8f11a9f
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..d787800
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,4 @@
+# This project does not seem be updated for 4 years.
+# Please update this list if you find better candidates.
+jeffbailey@google.com
+rtenneti@google.com