face: construct EthernetTransport with NetworkInterface

EthernetTransport and EthernetChannel constructors now accept
ndn::net::NetworkInterface instead of NetworkInterfaceInfo,
in preparation for the transition to NetworkMonitor.

refs #4021

Change-Id: I1687a13dfaafde4ab3795a6f8c76c728c12929b9
diff --git a/tests/daemon/face/ethernet-channel.t.cpp b/tests/daemon/face/ethernet-channel.t.cpp
index 238e193..af9f788 100644
--- a/tests/daemon/face/ethernet-channel.t.cpp
+++ b/tests/daemon/face/ethernet-channel.t.cpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
@@ -38,7 +38,7 @@
   makeChannel()
   {
     BOOST_ASSERT(netifs.size() > 0);
-    return make_unique<EthernetChannel>(netifs.front(), time::seconds(2));
+    return make_unique<EthernetChannel>(netifs.front().asNetworkInterface(), time::seconds(2));
   }
 };