ceph-aio-no-vagrant.sh: check if ansible is installed
ceph-aio-no-vagrant.sh: check if ansible is installed

Since we don't provide install-ansible.sh anymore we just check if it
exists. If not we fail and ask for installation.

Signed-off-by: Sébastien Han <62d754cc350e84d3b1c32ae79f976f5348e74a40@redhat.com>

bengland2/ceph-ansible,travmi/ceph-ansible,font/ceph-ansible,fgal/ceph-ansible,ceph/ceph-ansible,jtaleric/ceph-ansible,ceph/ceph-ansible,travmi/ceph-ansible,jtaleric/ceph-ansible,bengland2/ceph-ansible,font/ceph-ansible,fgal/ceph-ansible