Clusters w/ Windows node pool not working with SMB drivers

[jackfrancis]

/kind bug

[Before submitting an issue, have you checked the Troubleshooting Guide?]

What steps did you take and what happened:
[A clear and concise description of what the bug is.]

This is a placeholder issue until we do more investigation. We'll work with @andyzhangx to provide more detail.

The objective is to address any issues in the CAPZ Windows node implementation so that all upstream tests can use CAPZ instead of AKS Engine for testing and development.

What did you expect to happen:

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

Environment:

• cluster-api-provider-azure version:
• Kubernetes version: (use kubectl version):
• OS (e.g. from /etc/os-release):

[jackfrancis]

/assign