[Spike] Evaluate support for ppc64le arch

[adrianriobo]

There could be a potential use case for make use of crc-cloud when testing multi-arch, specially there are not much options when trying to test for P/Z archs.

This spike will try to spin the crc-cloud approach for crc on top of powerVS

[adrianriobo]

In order to evaluate the spike we need to check:

• build bundle based on ppc64le.
• transform bundle and import as PowerVS image
• spin a PowerVS machine
  We have been able so far to spin the machine, unfortunately the NIC is not properly setup, going through console and manually setting up it finally work. We need to check if NIC is self configured with cloud-init so we need to extend experiment when building the bundle to include it.
  Still got issues with dns resolving [Enhancement] adding a custom third option for a nameserver to be used on the cluster instance #39
• run cluster setup and got a healthy cluster

[gbraad]

@mtarsel FYI