Update OWNERS for libnativebridge

Add ART peoples as owners of libnativebridge

Test: N/A
Change-Id: I45b81fb6bb4771828581972d11f0f5eda590c99a
diff --git a/libnativebridge/OWNERS b/libnativebridge/OWNERS
index 6f0824b..daf87f4 100644
--- a/libnativebridge/OWNERS
+++ b/libnativebridge/OWNERS
@@ -1,2 +1,4 @@
 dimitry@google.com
 eaeltsin@google.com
+ngeoffray@google.com
+oth@google.com