CLOUDSTACK-7866: Passing type value to list_hosts method so as to avoid listing SSVM and CPVM

Correcting hostid attribute

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
CLOUDSTACK-7863: Fix the script 'test_vpc_vms_deployment.py' - Test Cases failing on Simulator as Testcases try to ssh to the VMs

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