WinPb: Update cuda path to v9.1

[AswathySK]

Update the cuda path (C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0) to v9.1 in the check to see if NVidia CUDA toolkit is already installed

Need to update the CUDA_VERSION=9.0 in build-farm/platform-specific-configurations/windows.sh in temurin-build repo after change is merged.

Checklist

• [ ] commit message has one of the standard prefixes
• [ ] faq.md updated if appropriate
• [ ] other documentation is changed or added (if applicable)
• [ ] playbook changes run through VPC or QPC (if you have access)
• [ ] VPC/QPC not applicable for this PR
• [ ] for inventory.yml changes, bastillion/nagios/jenkins updated accordingly