ceph-defaults: fix handlers that are always triggered

ceph-defaults: fix handlers that are always triggered

Handlers are always triggered in ceph-ansible because ceph.conf file is
generated with a randomly order for the different keys/values pairs
in sections.

In python, a dict is not sorted. It means in our case each time we try
to generate the ceph.conf file it will be rendered with a random order
since the mecanism behind consist of rendering a file from a python dict
with keys/values. Therefore, as a quick workaround, forcing this dict to be
sorted before rendering the configuration file will ensure that it will be
rendered always the same way.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit ec042219e64a321fa67fce0384af76eeb238c645)
Signed-off-by: Sébastien Han <seb@redhat.com>