libbinder: re-order OWNERS

maco@ keeps getting bugs assigned to him. Maybe if
we re-order this, it'll save him a few emails?

Bug: several
Test: N/A
Change-Id: I6c9f4d6958a536cda900f237a8744a435bc1a51e
diff --git a/libs/binder/OWNERS b/libs/binder/OWNERS
index bb17683..a70b558 100644
--- a/libs/binder/OWNERS
+++ b/libs/binder/OWNERS
@@ -1,4 +1,5 @@
 # Bug component: 32456
-maco@google.com
+
 smoreland@google.com
-tkjos@google.com
+tkjos@google.com # kernel
+maco@google.com # historical