CLOUDSTACK-7934: Fixed cleanup issues test_escalations_volumes.py

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-7933: test_escalations_instances.py - Fixed test_13_vm_nics for Vmware

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