Revise SCVMM certificate commands in troubleshooting guide

[arudell]

This pull request updates the troubleshooting guide for Arc-Enabled SDN regarding certificate issues with the NCHostAgent and SCVMM. The changes clarify command usage and provide more accurate guidance for diagnosing and resolving certificate conflicts, especially for newer versions of SdnDiagnostics.

Improvements to troubleshooting steps and command usage:

• Updated references to Debug-SdnFabricInfrastructure to specify use of the -NcRestCertificate parameter and to pipe in results from Get-SdnServerCertificate, clarifying the diagnostic process. [1] [2]
• Clarified that Get-SdnServerCertificate may return multiple certificates and highlighted the importance of checking for this scenario.
• Added notes about the introduction of the -NetworkControllerOid parameter for Get-SdnServerCertificate in SdnDiagnostics 4.2601.27.234 and later, and updated example PowerShell commands accordingly. [1] [2]

[Copilot]

Pull request overview

Updates the Arc-Enabled SDN troubleshooting guide for SCVMM-related certificate conflicts, focusing on clarifying how to use Get-SdnServerCertificate and how to pass the correct certificate into Debug-SdnFabricInfrastructure for diagnosis/verification.

Changes:

• Updated symptom indicators and verification guidance to reference Debug-SdnFabricInfrastructure -NcRestCertificate (Get-SdnServerCertificate).
• Added guidance noting that Get-SdnServerCertificate may return multiple certificates.
• Added notes about SdnDiagnostics versions introducing the -NetworkControllerOid parameter for Get-SdnServerCertificate.