platform: add nrf7120 target support

[travis3630]

Add target device api for nrf7120.

[travis3630]

Ready for merge

[avinaw01-arm]

Hi @travis3630
Thank you for reaching out to us. Before we merge your new platform, I request you to update all modified/added files with latest year in Copyright header. For example, Copyright (c) 2025 for new files, and Copyright (c) 20XX-2025 for modified files.

Porting a new target in psa-arch-tests now follows updated guidelines. The old method for updating Target configurations is no longer used. Please check the new porting guidelines in the following file and update your commit accordingly. File-path: <psa-arch-tests>/api-tests/docs/porting_guide_dev_apis.md.
You may also look at the existing platform files in the 'main' branch. We recommend checking the files for tgt_dev_apis_tfm_an521 target as a good example.

Please update your commit with the above changes. We can review and merge it afterward.
If you have any questions, please feel free to reach out to us.

[travis3630]

Updated , thanks

[avinaw01-arm]

Thanks for updating the Copyright headers. I would request you to port the platform according to the latest guidelines mentioned in the file: <psa-arch-tests>/api-tests/docs/porting_guide_dev_apis.md.
We can review and merge post that.

[travis3630]

Updated, is that what you mean?

[avinaw01-arm]

Yes, that's what I wanted to convey.
I can see that you are utilizing the value of WATCHDOG_4_BASE in your pal_driver_intf.c file, but you have marked it as “// Unused” in the platform configurations. The same applies to the subsequent similar macros in the sequence, if applicable.

Could you please rectify this and send us the final commit for review? Thanks.

[travis3630]

The "// Unused" should be removed , updated

[avinaw01-arm]

Thank you @travis3630.
Please allow us some time to review internally and then we can merge it.