Adding Docker option to Azure Databricks Linked Service in Azure Data Factory

While trying to create Azure Databricks Linked Service with New Job Cluster there is no such property for adding Docker Image url. Even tried adding Docker Image url using Additional->Specify dynamic contents in JSON format, the docker image is not getting added to the cluster.
Added the following in properties->typeproperties:
```
"newClusterDockerImage": {
"url": "URL_TO_DOCKER_IMAGE"
"basic_auth": {
"username": "USERNAME",
"password": "PASSWORD"
}
}
```