core: move nfd-specific files to daemon/

Refs: #4922
Change-Id: I2243dbb87c63f9cbaf7d7051d7a0d4bca2f9fdb5
diff --git a/daemon/mgmt/general-config-section.cpp b/daemon/mgmt/general-config-section.cpp
index 732074b..de9c611 100644
--- a/daemon/mgmt/general-config-section.cpp
+++ b/daemon/mgmt/general-config-section.cpp
@@ -24,7 +24,7 @@
  */
 
 #include "general-config-section.hpp"
-#include "core/privilege-helper.hpp"
+#include "common/privilege-helper.hpp"
 
 namespace nfd {
 namespace general {