[SPARK-9466] [SQL] Increate two timeouts in CliSuite.

Hopefully this can resolve the flakiness of this suite.

JIRA: https://issues.apache.org/jira/browse/SPARK-9466

Author: Yin Huai <yhuai@databricks.com>

Closes #7777 from yhuai/SPARK-9466 and squashes the following commits:

e0e3a86 [Yin Huai] Increate the timeout.