[mellanox]: Add KVM image target

[nazariig]

Signed-off-by: Nazarii Hnydyn [email protected]

Adding new QCOW2 target build for Mellanox platforms over generic ONiE installer

Why I did it

• To add QCOW2 target build for Mellanox platforms

Work item tracking

• N/A

How I did it

• Extended SONiC build system with a new target

How to verify it

1. make configure PLATFORM=mellanox
2. make target/sonic-mellanox.img.gz

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205
• 202211
• 202305

Tested branch (Please provide the tested image version)

• master
• 202405

Description for the changelog

• N/A

Link to config_db schema for YANG module changes

• N/A

A picture of a cute animal (not mandatory but encouraged)

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[mssonicbld]

/azp run Azure.sonic-buildimage

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).