Support RKE with Arc extension

[salaxander]

Describe the solution you'd like
[A clear and concise description of what you want to happen.]
Currently, RKE clusters managed through Azure Arc are not able to get secrets

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Secrets Store CSI Driver version: (use the image tag):
• Azure Key Vault provider version: (use the image tag):
• Kubernetes version: (use kubectl version):
• Cluster type: (e.g. AKS, aks-engine, etc): RKE