ceph_key_spec.rb: adapt latest code changes to rspec

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 337a30e5b55c768c7c22558d0cc9a085b8f9d16b from
https://github.com/dalgaaf/puppet-ceph/tree/feature/wip-da-rework-and-simplify)
ceph_pool_spec.rb: adapt to latest changes from ceph::pool

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 40189f1a1798d838c9217b6bac7c68722ee6b032 from
https://github.com/dalgaaf/puppet-ceph/tree/feature/wip-da-rework-and-simplify)