[Iothub] Added new routing source [version 2021-02-01-preview]#13069

chunyu3 merged 6 commits intoAzure:masterAzure/azure-rest-api-specs:masterfrom

kdonthineni:dev-iothub-Microsoft.Devices-2021-02-01-previewkdonthineni/azure-rest-api-specs:dev-iothub-Microsoft.Devices-2021-02-01-previewCopy head branch name to clipboard