[feat]: build for cmrat w/ radxa cm3

[groninge01]

Prerequisites

• I have searched for existing issues that already suggest this feature.

Describe the Feature Request

Hi, I would like to request a build (iso) for the cmrat w/ radxa cm3.

The necessary h/w to support getting this built can be donated.

Describe the Use Case

DTV Electronics is releasing this as a fully configured node. Having multiple s/w options gives it's customers a better (freedom of) choice.

Describe Preferred Solution

No response

Describe Alternatives

No response

Anything else?

No response