CORD-1083 move CordSubscriberRoot to rcord repo

Change-Id: I153668a67abcf0ab461b59ed3ed6a63afcf5f7c4
diff --git a/xos/api/tenant/cord/volt.py b/xos/api/tenant/cord/volt.py
index 5c9634a..50bd5a6 100644
--- a/xos/api/tenant/cord/volt.py
+++ b/xos/api/tenant/cord/volt.py
@@ -6,7 +6,8 @@
 from rest_framework import status
 from core.models import *
 from django.forms import widgets
-from services.volt.models import VOLTTenant, VOLTService, CordSubscriberRoot
+from services.volt.models import VOLTTenant, VOLTService
+from services.rcord.models import CordSubscriberRoot
 from xos.apibase import XOSListCreateAPIView, XOSRetrieveUpdateDestroyAPIView, XOSPermissionDenied
 from api.xosapi_helpers import PlusModelSerializer, XOSViewSet, ReadOnlyField