CLOUDSTACK-7894 : Fixed the script test_vm_passwdenabled.py - Test Cases failing on Simulator as Testcases try to ssh to the VMs

Signed-off-by: SrikanteswaraRao Talluri <talluri@apache.org>
merging 2c08e30a493cb520eb478795bbc5d5d4935dd59b from 4.5
Merge branch '4.5'