Change I65c50722f5990f540d84fa361b997302bbc935c5 moved our base test
code from cinder.test to cinder.tests.unit.test. It included updates for
all unit tests, but missed the compliance tests that are also based on
it.
This fixes the imports for the compliance tests to use the new location
to import the module.
Change-Id: I510f7707085b917ed45e674eeffb67c9ca444088
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>