Add OWNERS for libbinder.

Test: none
Change-Id: I3c5689d4211c92bfa89c8ed696311008776071f6
diff --git a/libs/binder/OWNERS b/libs/binder/OWNERS
new file mode 100644
index 0000000..350994a
--- /dev/null
+++ b/libs/binder/OWNERS
@@ -0,0 +1,5 @@
+arve@google.com
+ctate@google.com
+hackbod@google.com
+maco@google.com
+smoreland@google.com