source/system: Add reading product name information

[superbrothers]

This PR adds Add reading product name information from /sys/devices/virtual/dmi/id/product_name.

I want to add this feature because I want to label based on the product name of the compute machine.

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[marquiz]

Thank you @superbrothers for the improvement. Looks fine to me
/ok-to-test

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: marquiz, superbrothers

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[marquiz]

/assign @ArangoGutierrez

[TessaIO]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 5def7205973dcce242bc3d15e30ad30cbb02d91f