When using multi-backend in Cinder, we need to specify a default type to
avoid any error when creating a volume without specifying a type.
This patch is backward compatible when not using multi-backend and make
the catalog fail if we don't specify the value.
Also, it updates puppet-cinder to last stable/havana commit.
Signed-off-by: Emilien Macchi <emilien.macchi@enovance.com>