[TF-M] PSA Developer API compliance tests

Dear all,

The new tag which has just been made available from the psa-arch-tests, available here:

https://github.com/ARM-software/psa-arch-tests/releases/tag/v19.06_API0.9

is the one that has to be used to be able to verify PSA Developer API compliance with the latest TF-M.

The procedure to follow to build and run the tests remains the same.

Thanks, Antonio