Update corporate-identifiers-add.md

[ErikMoreau]

updated misleading example Microsoft,model,serial to MicrosoftCorporation,model,serial in the example on line 123, many initial failures are users uploading with this incorrect Brand identifier for Surface

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[v-smandalika]

Hi,

This PR has been open for an extended period of time and has conflicts. If these changes are still relevant, please re-submit them to https://github.com/MicrosoftDocs/memdocs-pr.

Thanks, @v-smandalika