Add openstack cleanup after running the tests
Add openstack cleanup after running the tests

JIRA: FUNCTEST-76

Change-Id: I1ab6366582c74f4eb1d3453cef155b85c757aa1b
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

opnfv/functest,mywulin/functest,opnfv/functest,mywulin/functest