[virt-tools-list] [virt-install PATCH] cloudinit: Fix password expiration

[athina.plaskasoviti at gmail.com]

Until now login password expired for all instances. I thought that maybe when user provides password with a password file, the purpose is to choose the password instead of generating a random one and then changing it upon first login, so I made a change to avoid expiration in that case. 

If that change is unnecessary, commit will be dropped.