salt-cloud will use list_floating_ips for OpenStack
salt-cloud will use list_floating_ips for OpenStack

this will use list_floating_ips as well for recent versions of
libcloud. To not break with current setups create_floating_ip is used in
case no free ip in the pool exists. The latter is as well a minor fixup
to #34280 (i.e. older versions of libcloud)

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt