src: Renaming class to spell out them (Adl, Nhl, Npl, Npt, Npte)

Refs: #1534

Change-Id: If4a205e8ad2419505cc796027a5c863471ef5439
diff --git a/tests/test-nexthop.cpp b/tests/test-nexthop.cpp
index b0bb90d..0cdf23c 100644
--- a/tests/test-nexthop.cpp
+++ b/tests/test-nexthop.cpp
@@ -20,7 +20,7 @@
 
   np1.setRouteCost(10.5);
 
-  BOOST_CHECK_EQUAL(np1.getConnectingFace(), 1);
+  BOOST_CHECK_EQUAL(np1.getConnectingFace(), (uint32_t)1);
   BOOST_CHECK_CLOSE(np1.getRouteCost(), 10.5, 0.0001);
 }