[AutoPR azure-mgmt-azurestackhci] Add SystemData#4394

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openapi-sdkautomation[bot] wants to merge 1 commit intorelease/v3from sdkAuto/13184/azure-mgmt-azurestackhci

+206-110

Commits on Mar 1, 2021

CodeGen from PR 13184 in Azure/azure-rest-api-specs
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