py: Fix "TypeError: 'iterator' object is not iterable", doh.
diff --git a/py/objrange.c b/py/objrange.c
index c527dfa..64d9245 100644
--- a/py/objrange.c
+++ b/py/objrange.c
@@ -63,6 +63,7 @@
 STATIC const mp_obj_type_t range_it_type = {
     { &mp_type_type },
     .name = MP_QSTR_iterator,
+    .getiter = mp_identity,
     .iternext = range_it_iternext,
 };