Merge branch 'fix_pfcp_ip_address' into 'develop'

Deactivate IPv6 UE IP PFCP IEs

See merge request oai/cn5g/oai-cn5g-smf!163

src/smf_app/smf_procedure.cpp

@@ -67,9 +67,11 @@ pfcp::ue_ip_address_t smf_session_procedure::pfcp_ue_ip_address(
     ue_ip.v4           = 1;
     ue_ip.ipv4_address = sps->ipv4_address;
   }
+  // TODO malformed PFCP message, should be fixed in PFCP layer, but we dont
+  // need it for now
   if (sps->ipv6) {
-    ue_ip.v6           = 1;
-    ue_ip.ipv6_address = sps->ipv6_address;
+    ue_ip.v6 = 0;
+    // ue_ip.ipv6_address = sps->ipv6_address;
   }
   return ue_ip;
 }