CORD-1563 Clean up Vagrantfile for CiaB

Change-Id: Ida1704eb1c5c7c695312c1e16ad0d7593251aa6c
diff --git a/ansible/add-extra-drive.yml b/ansible/add-extra-drive.yml
index 22a3a1b..80963c9 100644
--- a/ansible/add-extra-drive.yml
+++ b/ansible/add-extra-drive.yml
@@ -1,5 +1,6 @@
-- hosts: localhost
-  remote_user: vagrant
+- name: Set up extra drive in the Vagrant VM
+  hosts: all
+  become: yes
   serial: 1
   roles:
     - extra-drive