Replace Boost.MPL with Mp11

Change-Id: I9e0f3cd0169a733f602ff5fc1457f63d6499387d
diff --git a/tests/unit/lp/pit-token.t.cpp b/tests/unit/lp/pit-token.t.cpp
index 6f45b32..9496070 100644
--- a/tests/unit/lp/pit-token.t.cpp
+++ b/tests/unit/lp/pit-token.t.cpp
@@ -20,6 +20,7 @@
  */
 
 #include "ndn-cxx/lp/pit-token.hpp"
+#include "ndn-cxx/lp/fields.hpp"
 #include "ndn-cxx/lp/packet.hpp"
 
 #include "tests/boost-test.hpp"