Show virtualization provider (hypervisor)
Show virtualization provider (hypervisor)

With this patch, osbash.sh tells the user whether it is about to use
VirtualBox or KVM.

Change-Id: I4518bed5b88b29b865e2b6b494b9e1be2b8848a7

openstack/training-labs,openstack/training-labs,openstack/training-labs