storage: specify objstorage in configuration

Related to swh/infra/sysadm-environment#4811

swh/templates/storage/configmap.yaml

@@ -21,5 +21,5 @@ data:
         {{- end }}
       {{- end }}
       objstorage:
-        cls: noop
+      {{- toYaml .Values.storage.objstorage | nindent 8 }}
 {{- end -}}

swh/values.yaml

@@ -194,6 +194,8 @@ storage:
       - seed1
     keySpace: swh
     consistencyLevel: LOCAL_QUORUM
+  objstorage:
+    cls: noop
 
 statsd_exporter:
   enabled: false