erp5_base: no need to fetch all Notification Message

bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/NotificationTool_getDocumentValue.py

@@ -5,6 +5,7 @@ notification_message_list = portal.portal_catalog.getDocumentValueList(
   reference=reference,
   language=language,
   strict_language=strict_language,
+  limit=limit,
   **kw
 )
 if notification_message_list:

bt5/erp5_base/SkinTemplateItem/portal_skins/erp5_base/NotificationTool_getDocumentValue.xml

@@ -50,7 +50,7 @@
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>reference, language=None, strict_language=False, validation_state=None, **kw</string> </value>
+            <value> <string>reference, language=None, strict_language=False, validation_state=None, limit=1, **kw</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>