core: move nfd-specific files to daemon/

Refs: #4922
Change-Id: I2243dbb87c63f9cbaf7d7051d7a0d4bca2f9fdb5
diff --git a/daemon/face/unicast-ethernet-transport.cpp b/daemon/face/unicast-ethernet-transport.cpp
index 3ed7800..97e5c4e 100644
--- a/daemon/face/unicast-ethernet-transport.cpp
+++ b/daemon/face/unicast-ethernet-transport.cpp
@@ -24,7 +24,7 @@
  */
 
 #include "unicast-ethernet-transport.hpp"
-#include "daemon/global.hpp"
+#include "common/global.hpp"
 
 #include <stdio.h>  // for snprintf()