Increase timeout for waiting for broker service in sal-binding-it.

Increase timer from 1min to 2mins because tests in sal-binding-it are not stable on ODL jenkins.

Change-Id: Ibd43d5258c5957c60ad0619ef23aec378963151d
Signed-off-by: Tomas Olvecky <tolvecky@cisco.com>
Merge "Increase timeout for waiting for broker service in sal-binding-it."