Adjust ironic tempest regex for new tests

A new tempest scenario file, test_baremetal_advanced_ops.py, will soon
be added for advanced test cases. This regex needs adjusted to pick up
this new file and its tests.

Change-Id: If1b25a123c764a7c9f73f910c9796ab18243f12e
Merge "Adjust ironic tempest regex for new tests"