[SPARK-7973] [SQL] Increase the timeout of two CliSuite tests.

https://issues.apache.org/jira/browse/SPARK-7973

Author: Yin Huai <yhuai@databricks.com>

Closes #6525 from yhuai/SPARK-7973 and squashes the following commits:

763b821 [Yin Huai] Also change the timeout of "Single command with -e" to 2 minutes.
e598a08 [Yin Huai] Increase the timeout to 3 minutes.