Fix neutron_lbaas whitelist
Fix neutron_lbaas whitelist

Should not be empty since it will non-related tests such
as heat.

Change-Id: I0e44cc5690bb5c46fd48e0f07f06775b5bb4b421
(cherry picked from commit 58a05e78e693ba89a06c7ea88ce6f4ab303e9ec8)

redhat-openstack/infrared,okolisny/InfraRed,okolisny/InfraRed,redhat-openstack/infrared,redhat-openstack/infrared,okolisny/InfraRed