tasks/ceph: update mds auth caps to 'allow *'

Since the new 'tell' for the MDS was introduced,
caps have to have the '*' to permit running remote
administrative commands.

Signed-off-by: John Spray <john.spray@redhat.com>

tasks/ceph.py

@@ -375,7 +375,7 @@ def cluster(ctx, config):
             '--set-uid=0',
             '--cap', 'mon', 'allow *',
             '--cap', 'osd', 'allow *',
-            '--cap', 'mds', 'allow',
+            '--cap', 'mds', 'allow *',
             keyring_path,
             ],
         )