Network.IP: use PDI constants

Use PDI constants instead of local definitions.

Tested: Inspection only.

Change-Id: If4c3c657be0d97658eb400a59ec2833c6df1c131
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/transporthandler.hpp b/transporthandler.hpp
index de1bb66..ec67a5e 100644
--- a/transporthandler.hpp
+++ b/transporthandler.hpp
@@ -311,7 +311,7 @@
         sdbusplus::server::xyz::openbmc_project::network::IP::AddressOrigin>&
         origins)
 {
-    ObjectLookupCache ips(bus, params, INTF_IP);
+    ObjectLookupCache ips(bus, params, NetworkIP::interface);
     return findIfAddr<family>(bus, params, idx, origins, ips);
 }