CORD-2753 Allow owner_class_name to be set for ServiceInstances

Change-Id: Ia67882027a3c18bfada099bcf83cd016558c47cf
diff --git a/lib/xos-genx/xosgenx/targets/service.xtarget b/lib/xos-genx/xosgenx/targets/service.xtarget
index 9d2915d..a9ca934 100644
--- a/lib/xos-genx/xosgenx/targets/service.xtarget
+++ b/lib/xos-genx/xosgenx/targets/service.xtarget
@@ -43,6 +43,10 @@
 
   KIND = {{ xproto_first_non_empty([m.options.kind, options.kind, options.name, "Set a kind in your xproto!"]) }}
 
+  {% if m.options.owner_class_name %}
+  OWNER_CLASS_NAME = {{ m.options.owner_class_name }}
+  {% endif %}
+
   class Meta:
       app_label = {{ xproto_first_non_empty([m.options.app_label, options.app_label, options.name, "Set an app label in your xproto!"]) | lower}}
       # name = {{ xproto_first_non_empty([m.options.name, options.name, "Set a name in your xproto!"]) }}