tools: fix compilation with latest ndn-cxx

Change-Id: Ifded624f3256452be98f288f9193dd26e464cd36
diff --git a/tests/tools/nfdc/status-fixture.hpp b/tests/tools/nfdc/status-fixture.hpp
index c82e79b..87ddba8 100644
--- a/tests/tools/nfdc/status-fixture.hpp
+++ b/tests/tools/nfdc/status-fixture.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2022,  Regents of the University of California,
+ * Copyright (c) 2014-2023,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -107,7 +107,7 @@
 
 protected:
   ValidatorUniquePtr validator;
-  Controller controller;
+  ndn::nfd::Controller controller;
 
   M module;