Add support for provisioning GPUs from GCP

[bdattoma]

Based on OCP documentation https://docs.openshift.com/container-platform/4.16/machine_management/creating_machinesets/creating-machineset-gcp.html#machineset-gcp-enabling-gpu-support_creating-machineset-gcp
- GPUs like T4, V100, etc must be attached to a N1 virtual machine
- higher profile GPUs like A100, H100, etc have their own virtual machine flavor, hence can be provisioned without attaching to the N1

PR validation (done locally, CI not yet supported):

• Deploy a N1-attached (e.g., nvidia T4) GPU on GCP cluster: PASS
• deploy a GPU node on GCP cluster (e.g., L4): PASS
• (regression) deploy a GPU on AWS: PASS

[github-actions]

Robot Results

✅ Passed	❌ Failed	⏭️ Skipped	Total	Pass %
535	0	0	535	100

[apodhrad]

Hi @bdattoma what is N1?

[bdattoma]

Hi @bdattoma what is N1?

a series of virtual machine on GCP: https://cloud.google.com/compute/docs/general-purpose-machines#n1_machines

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud