Switched sal-binding-it to use failsafe.

Switched sal-binding-it to use failsafe.

sal-binding-it contained only integration tests
which should be run using failsafe instead of
surefire.

This tests are sensitive to available performance
and sometimes may timeout if not enough CPU
power is availble thus marking them as optional
instead of dissabling them at all.

Change-Id: Iea8a7f093892587e707d6eccaf29311878a721fd
Signed-off-by: Tony Tkacik <ttkacik@cisco.com>