slapos_upgrader: Use bt5 list from slapos_configurator.

master/bt5/slapos_upgrader/SkinTemplateItem/portal_skins/slapos_upgrader/Base_getUpgradeBusinessTemplateList.py

 """
   This script should returns always two list of Business Template.
    - The first list is to resolve dependencies and upgrade.
-   - The second list is what you want to keep. This is useful if we want to keep 
+   - The second list is what you want to keep. This is useful if we want to keep
    a old business template without updating it and without removing it
 """
 
-bt5_update_catalog_list = ('erp5_ingestion_mysql_innodb_catalog',
-                           'slapos_cloud', 'erp5_accounting',
-                           'erp5_movement_table_catalog')
-
-bt5_id_list = bt5_update_catalog_list + ('slapos_configurator',
-  'slapos_erp5',)
-
-keep_bt5_id_list = ['erp5_ui_test',
-                   'erp5_ui_test_core',
-                   'slapos_category',
-                   'erp5_secure_payment',
-                   'vifib_datas',
-                   ]
+bt5_id_list, bt5_update_catalog_list, keep_bt5_id_list = \
+  context.TemplateTool_getSlapOSMasterBusinessTemplateList()
 
 return bt5_id_list, keep_bt5_id_list