DM: fix for properly idetifying VMI ownership

If VMI is associated to a LI, then it is a BMS case.
Closes-Bug: #1506589

Change-Id: Id7f845469ff6a9fb6f0c5658b3d7431ae7e7901b

src/config/device-manager/device_manager/db.py

@@ -1019,7 +1019,6 @@ def update(self, obj=None):
             self.params = obj['virtual_machine_interface_properties']
             self.service_interface_type = self.params.get(
                 'service_interface_type', None)
-        self.device_owner = obj.get("virtual_machine_interface_device_owner")
         self.update_single_ref('logical_interface', obj)
         self.update_single_ref('virtual_network', obj)
         self.update_single_ref('floating_ip', obj)
@@ -1035,8 +1034,7 @@ def update(self, obj=None):
     # end update
 
     def is_device_owner_bms(self):
-        if (not self.device_owner or
-                self.device_owner.lower() == 'physicalrouter'):
+        if self.logical_interface:
             return True
         return False
     # end