[TF-M] IRQ testing tool available for review

Hi All,

The IRQ testing tool proposed for TF-M earlier, and presented in one of the TF-M tech forum is available for code review: https://review.trustedfirmware.org/c/trusted-firmware-m/+/4078/1 https://review.trustedfirmware.org/c/trusted-firmware-m/+/4079/1

The presentation can be viewed here: https://zoom.us/rec/share/3epSNYjX519Oeony5HH8WIgqXb7peaa82iYf_vZYmBuPbFktCI... (Extended) Slides: https://www.trustedfirmware.org/docs/Automated_testing_of_interrupt_handling...

Please give feedback in gerrit review comments.

Thanks, Mate