ceph-nfs: use template module for configuration
ceph-nfs: use template module for configuration

789cef7 introduces a regression in the ganesha configuration file
generation. The new config_template module version broke it.
But the ganesha.conf file isn't an ini file and doesn't really
need to use the config_template module. Instead we can use the
classic template module.

Resolves: #4045

Signed-off-by: Dimitri Savineau <a50a620e679eed14f4e99998b821cea8884cf228@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible