[AutoPR track2_azure-mgmt-iothub] iothub package-preview-2019-07 add#5513

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openapi-sdkautomation[bot] wants to merge 1 commit intomasterfrom sdkAuto/14319/track2_azure-mgmt-iothub

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Commits on May 8, 2021

CodeGen from PR 14319 in Azure/azure-rest-api-specs
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