[TF-M] [RFC]Patches for migrating testing codes from TF-M to tf-m-tests

Hi,

As have shared on the tech forum yesterday, there is the activity to move the test codes from tf-m to tf-m-tests. Here are the patches for the step 1 - moving the codes without modifications: https://review.trustedfirmware.org/q/topic:%22Migration_of_test_code%22+(sta...)

Please help on review. Thanks.

The review window would be closed in one week in case of no comments.

Best Regards, Kevin