Filter connect points by device ID

addMissingPorts(Device) runs per device basis, but the variable missing
contains connect points of the other devices.

Change-Id: I0c4e74b131c8c4f283b103c77eab7443336b7b8b

@@ -451,6 +451,7 @@ class ConfigProvider implements DeviceProvider, LinkProvider, HostProvider {
                 .map(p -> new ConnectPoint(device.id(), p.number()))
                 .collect(Collectors.toSet());
         Set<ConnectPoint> missing = connectPoints.stream()
+                .filter(cp -> cp.deviceId().equals(device.id()))
                 .filter(cp -> !existing.contains(cp))
                 .collect(Collectors.toSet());