tests: do not rely on pg_num to validate rgw_tuning_pools
tests: do not rely on pg_num to validate rgw_tuning_pools

Since the pg_autoscaler has been enabled recently in ceph, this check
should stick to validate the requested pools are well created only.

Signed-off-by: Guillaume Abrioux <30a9df5a0293a6108675377fa1673f7aa713f915@redhat.com>

ceph/ceph-ansible,ceph/ceph-ansible