cephadm: add missing cluster name

Two tasks were calling `ceph_key` module without the `cluster` parameter
which is problematic in DCN environment, where we specify the cluster
name.

Closes-Bug: #1935774
Change-Id: I2f5647ea9bc219f0eca9b9580662ca4b5c3c226e

tripleo_ansible/roles/tripleo_cephadm/tasks/export.yaml

@@ -58,6 +58,7 @@
 - name: Extract keys
   ceph_key:
     name: "{{ item.name }}"
+    cluster: "{{ tripleo_cephadm_cluster }}"
     state: info
   environment:
     CEPH_CONTAINER_IMAGE: "{{ tripleo_cephadm_container_ns + '/' + tripleo_cephadm_container_image + ':' + tripleo_cephadm_container_tag }}"

tripleo_ansible/roles/tripleo_cephadm/tasks/nfs.yaml

@@ -44,6 +44,7 @@
 - name: Extract key
   ceph_key:
     name: "{{ item.name }}"
+    cluster: "{{ tripleo_cephadm_cluster }}"
     output_format: plain
     state: info
   environment: