quickstarts/microsoft.azurestackhci/create-cluster-2-node-switched-custom-storageip failing due to wrong type 'boolean'

[Template Name goes here](Template link goes here)
[azuredeploy.json](https://github.com/Azure/azure-quickstart-templates/blob/master/quickstarts/microsoft.azurestackhci/create-cluster-2-node-switched-custom-storageip/azuredeploy.json)

### Issue Details
"useDhcp": {
"type": "boolean",
...
is of wrong type it will produce a validation error - it should be "**bool**"

### Repro steps (*if necessary, delete otherwise*)
1. Just try to deploy this template using the custom template deployment dialog in Azure Portal. -> hit create (after adding all parameters) - it will fail and tell you that validation failed.

Open quickstarts/microsoft.azurestackhci/create-cluster-2-node-switched-custom-storageip/azuredeploy.json and inspect the useDhcp parameter definition. Use the Azure Portal custom template deployment dialog to validate the template with its parameters. Done means the template passes validation without the reported type error.

Written by the indexing model from the issue text.