CLOUDSTACK-7644: test_persistent_networks.py - SSH failure in case of LB rule due to port mismatch

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-7646: test_nuage_vsp.py - Fixed basic indentation issues, list index issues, marked it as invalid because the test cases needs attention by the original author as it does not pass even after fixing the issues. Also moving it to smoke folder as clearly it is a Basic Validation test

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>