Use SSD disk for journal device

Try to find out if device is SSD disk, and use it for journal device


https://github.com/crowbar/barclamp-deployer/pull/211 is required
No, journal devices, are skipped at https://github.com/jsuchome/barclamp-ceph/blob/ssd_for_journal/chef/cookbooks/ceph/recipes/osd.rb#L124 because "status" value was set to "journal" at https://github.com/jsuchome/barclamp-ceph/blob/ssd_for_journal/chef/cookbooks/ceph/recipes/osd.rb#L100