Cloudera on CentOs failed to deploy

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[cloudera-on-centos](https://github.com/Azure/azure-quickstart-templates/tree/master/cloudera-on-centos)

### Issue Details
Not able to deploy template, multiple error

### Repro steps (*if necessary, delete otherwise*)
1. while deploying in Azure portal, validation for deployment of template fails
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Start with the linked cloudera-on-centos template and reproduce its deployment in the Azure portal until validation fails. Record the specific validation errors and confirm the template deploys successfully after the issue is addressed.

Written by the indexing model from the issue text.