Imaging the node and updating the firmware using Terraform

[KPtheitguy]

Is your feature request related to a problem? Please describe.
We are one of the VAR who sells Nutanix products as well as provide support services, when clients buy Nutanix hardware from us, for the improvement of service and value we provide we get the nodes to current AOS and Firmware how ever it is getting difficult for us to do this manually

Describe the solution you'd like
we would like to use an image created from phoenix and image all the nodes and update the firmware without even configuring anything like IPMI, Cluster or CVM

Describe alternatives you've considered
Manual Method