Fix dpts import

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/trunk@1984 b32b6428-25c9-4566-ad07-03861ab6144f

devices/protocols/knx/xaal/knx/knxrouter.py

@@ -5,7 +5,7 @@
 from xaal.lib import network 
 from enum import Enum
 
-import dpts
+from . import dpts
 import logging
 import struct
 import time