Add ADRV904X driver and sample project

[danmois]

Pull Request Description

Add ADRV904X driver and sample project

PR Type

• Bug fix (change that fixes an issue)
• New feature (change that adds new functionality)
• Breaking change (has dependencies in other repos or will cause CI to fail)

PR Checklist

• I have followed the Coding style guidelines
• I have complied with the Submission Checklist
• I have performed a self-review of the changes
• I have commented my code, at least hard-to-understand parts
• I have build all projects affected by the changes in this PR
• I have tested in hardware affected projects, at the relevant boards
• I have signed off all commits from this PR
• I have updated the documentation (wiki pages, ReadMe etc), if applies

[amiclaus]

the API should be in a separate commit and included in the ignore lists of the CI builds, and it is not subject for review in this repository. Also the driver, documentations, project should be each in its own commit. This will ease a lot the review process since there are a lot of code lines in this PR.