osprofiler was integrated to Neutron a while ago[1] but the options
for this library have not been added to neutron.conf properly.
This ensures the options are rendered by oslo-config-generator.
[1] 9a43f58f4df85adc2029c33ba000ca17b746a6eb
Change-Id: Ice1b3f701ac244e17d855484263199f8a0b8310b