Include RZproducts DCM in detection logic for Vutlan EMS

[pixeldoc2000]

Also detect "RZproducts DCM", as it is ODM / Whitelabel of Vutlan Device.

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General information

RZproducts DCM shares the same Firmware & Hardware with Vutlan EMS. SNMP OID are also the same.

Proposed changes

Change Vutlan EMS detection Logic to also detect RZproducts DCM.

[pixeldoc2000]

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