osprofiler change broke out-of-tree unit tests

[YAMAMOTO Takashi]

the recently merged ofprofiler change [1] broke out-of-tree code.

[1] I7fa2ad57dc5763ce72cba6945ebcadef2188e8bd

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%20%5C%22no%20such%20option%20in%20group%20DEFAULT%3A%20profiler%5C%22

eg.
http://logs.openstack.org/81/320181/2/check/gate-tap-as-a-service-python27/60fc1d1/testr_results.html.gz

Traceback (most recent call last):
  File "/home/jenkins/workspace/gate-tap-as-a-service-python27/.tox/py27/local/lib/python2.7/site-packages/fixtures/fixture.py", line 197, in setUp
    self._setUp()
  File "/home/jenkins/workspace/gate-tap-as-a-service-python27/.tox/py27/src/neutron/neutron/tests/unit/testlib_api.py", line 67, in _setUp
    engine = db_api.get_engine()
  File "/home/jenkins/workspace/gate-tap-as-a-service-python27/.tox/py27/src/neutron/neutron/db/api.py", line 73, in get_engine
    facade = _create_facade_lazily()
  File "/home/jenkins/workspace/gate-tap-as-a-service-python27/.tox/py27/src/neutron/neutron/db/api.py", line 63, in _create_facade_lazily
    if cfg.CONF.profiler.enabled and cfg.CONF.profiler.trace_sqlalchemy:
  File "/home/jenkins/workspace/gate-tap-as-a-service-python27/.tox/py27/local/lib/python2.7/site-packages/oslo_config/cfg.py", line 2183, in __getattr__
    raise NoSuchOptError(name)
oslo_config.cfg.NoSuchOptError: no such option in group DEFAULT: profiler

[Muawia Khan (muawia)]

Fixed by: https://review.openstack.org/#/c/320242

[Dariusz Smigiel (smigiel-dariusz)]

@Yamamoto, I'm sorry for inconvenience with changing duplicates, but "duplicate" was already merged.
This will allow to track place, where initial fix was done.