fix compute storage client ceph key

Change-Id: Id88a9a1ed09563ae3622ba6d2aa0f91729772fd0
diff --git a/nova/compute/storage/ceph.yml b/nova/compute/storage/ceph.yml
index c271952..7cb24cb 100644
--- a/nova/compute/storage/ceph.yml
+++ b/nova/compute/storage/ceph.yml
@@ -6,5 +6,5 @@
         ephemeral: yes
         rbd_pool: ${_param:nova_storage_pool}
         secret_uuid: ${_param:nova_storage_secret_uuid}
-        client_cinder_key: ${_param:nova_storage_secret_uuid}
+        client_cinder_key: ${_param:nova_storage_client_key}
         rbd_user: ${_param:nova_storage_user}
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