[core] Fix check config if warehouse is in S3

[19/May/2020 17:33:14 -0700] conf         ERROR    Failed to access Hive warehouse: s3a://yingsdx051720/data-v710/warehouse/tablespace/managed/hive
Traceback (most recent call last):
  File "/opt/cloudera/parcels/CDH-7.1.0-1.cdh7.1.0.p2.2994030/lib/hue/apps/hive/src/hive/conf.py", line 78, in config_validator
    fs.do_as_superuser(fs.stats, warehouse)
  File "/opt/cloudera/parcels/CDH-7.1.0-1.cdh7.1.0.p2.2994030/lib/hue/desktop/core/src/desktop/lib/fs/proxyfs.py", line 135, in do_as_superuser
    fs = self._fs_dict[scheme](self._name)
TypeError: _get_client_cached() takes exactly 3 arguments (2 given)