Fix slow test test_wait_for_ilo_after_reset_ribcl_ok
Fix slow test test_wait_for_ilo_after_reset_ribcl_ok

This commit mocks time.sleep in the test case
test_wait_for_ilo_after_reset_ribcl_ok so that it can
run faster.

Change-Id: I4c44aaca5f6b7bd64b71eb62734f6fac2aae2891

stackforge/proliantutils,openstack/proliantutils