Added /etc/network/interfaces enforcement for Ubuntu 16.04

Change-Id: Icb8da3de1b847cad44772189363a606cf243e912
diff --git a/ubuntu-16.04/template.json b/ubuntu-16.04/template.json
index 96cd1d8..aec11c2 100644
--- a/ubuntu-16.04/template.json
+++ b/ubuntu-16.04/template.json
@@ -15,7 +15,8 @@
         "virtualbox-iso": {
           "scripts": [
             "scripts/base.sh",
-	    "scripts/salt.sh",
+            "scripts/salt.sh",
+	          "scripts/network.sh",
             "scripts/vagrant.sh",
             "scripts/virtualbox.sh",
             "scripts/security.sh",
@@ -36,7 +37,8 @@
 	"qemu": {
           "scripts": [
             "scripts/base.sh",
-	    "scripts/salt.sh",
+	          "scripts/salt.sh",
+            "scripts/network.sh",
             "scripts/security.sh",
             "scripts/cleanup.sh",
             "scripts/zerodisk.sh"
@@ -46,7 +48,7 @@
           "scripts": [
             "scripts/docker.sh",
             "scripts/base.sh",
-	    "scripts/salt.sh",
+	          "scripts/salt.sh",
             "scripts/cleanup.sh"
           ]
 	},