Mark tests as smoke

Rework marking tests as smoke, so not every test
create a loadbalancer.

* test_load_balancer_ipv4_create
* test_flavor_create
* test_flavor_profile_create
* test_provider_list

Related-PROD: PROD-32767

Change-Id: Ib4c1b430db2eb742813a8890ea6bb99bddfc4eec
10 files changed