[TF-A] [RFC] TF-A threat model

Hi All,

We are releasing the first TF-A threat model document. This release provides the baseline for future updates to be applied as required by developments to the TF-A code base. Please review the document provide comments here: https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/9627.

Thanks, Zelalem