Fix component config exception from DHCP relay app

Change-Id: I6cee113063a9a1dbccf2db692678229afd2313ce
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
index 69f8c65..afab19a 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
@@ -179,7 +179,7 @@
         v4Handler.getDhcpServerIp().ifPresent(hostService::stopMonitoringIp);
         // TODO: DHCPv6 Handler
 
-        compCfgService.unregisterProperties(getClass(), true);
+        compCfgService.unregisterProperties(getClass(), false);
         log.info("DHCP-RELAY Stopped");
     }