ceph-validate: check db/journal/wal devices too

When using dedicated devices for db/journal/wal objecstore with
ceph-volume lvm batch then we should also validate that those devices
exist and don't use a gpt partition table in addition of the devices
and lvm_volume.data variables.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 808e710)

roles/ceph-validate/tasks/check_devices.yml

@@ -38,6 +38,8 @@
       failed_when: False
       with_items:
         - "{{ devices | default([]) }}"
+        - "{{ dedicated_devices | default([]) }}"
+        - "{{ bluestore_wal_devices | default([]) }}"
         - "{{ lvm_volumes_data_devices | default([]) }}"
 
     - name: fail if one of the devices is not a device