Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1435977

If an environment consists of only one virtualization technology (such as VMWare, RHEV, etc.) and systems are only deployed there, it would be nice to have the ability and set a default value for "Hardware Model" in the "New Host" wizard.
That way, one does not need to fill in that field manually for every single host as it's anyway clear and only specific exceptions would need to be touched.
User deployes Red Hat Enterprise Linux only on VMWare and does not have bare metal deployments or other technologies in use. It therefore would make it easier if the "Hardware Model" field can be pre-filled with VMWare as default. That way it's automatically clear and one does not need to care about that field.
It will also avoid false declaration as only specific exceptions need to be considered respectively taken care.

We should allow to specify the "Hardware Model" in HostGroup or else provide a switch in the Options to set the "Hardware Model" to a default value