Manila: Use manila::backend::ganesha to set up ganesha options
Manila: Use manila::backend::ganesha to set up ganesha options

Depends-on: https://review.opendev.org/790317
Change-Id: I1a789a7f2fdcad88e019b9a761678985dc43ba7f

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo