nfd: Add systemd startup scripts

refs #2810

Change-Id: Ib710edddcd94d78104247d8ed70d536263a5c40a
diff --git a/nfd/debian/nfd-stop b/nfd/debian/nfd-stop
index 2069e9c..301cf15 100755
--- a/nfd/debian/nfd-stop
+++ b/nfd/debian/nfd-stop
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-sudo stop nfd
+sudo systemctl stop nfd