Fix upgrade_ha_env test

- OpenStackActions instance was initialized with public vip
of controller but cluster mode is simple and there is no
public vip. So now we are passing ip of the controller that
is taking from devops

Change-Id: I19eae689519979a3374c4e526940c5d953d69e44
Closes-Bug: #1402537
Merge "Fix upgrade_ha_env test" into stable/6.0