Reduce vcpu for contrail lab to fit on the 16-core node

Change-Id: I643c41e218a43a873bd7d13bb2c2794688940696
Reviewed-on: https://review.gerrithub.io/373904
Reviewed-by: Dennis Dmitriev <dis.xcom@gmail.com>
Tested-by: Dennis Dmitriev <dis.xcom@gmail.com>
1 file changed