Updated tutorial p4vm scripts to build upon Ubuntu Desktop

And not Lubuntu which had u=issues with VirtualBox guest additions

Change-Id: I47218b78ea3d6ae2574fa55166cc48c1de3989e7
diff --git a/tools/dev/p4vm/Vagrantfile b/tools/dev/p4vm/Vagrantfile
index 0157bf2..259e380 100644
--- a/tools/dev/p4vm/Vagrantfile
+++ b/tools/dev/p4vm/Vagrantfile
@@ -1,7 +1,11 @@
 P4_VM_TYPE = ENV['P4_VM_TYPE'] || "dev"
 
 Vagrant.configure(2) do |config|
-  config.vm.box = "bento/ubuntu-16.04"
+  if P4_VM_TYPE == "tutorial"
+    config.vm.box = "fso/xenial64-desktop"
+  else
+    config.vm.box = "bento/ubuntu-16.04"
+  end
   config.vm.provider "virtualbox" do |vb|
     vb.name = "ONOS+P4 " + P4_VM_TYPE + " " + Time.now.strftime("(%Y-%m-%d)")
     vb.gui = true