nfd: Add systemd startup scripts

refs #2810

Change-Id: Ib710edddcd94d78104247d8ed70d536263a5c40a
diff --git a/nfd/debian/nfd-start b/nfd/debian/nfd-start
index 0edfea9..d350776 100755
--- a/nfd/debian/nfd-start
+++ b/nfd/debian/nfd-start
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-sudo start nfd
+sudo systemctl start nfd