Update the SPM DB assembling to reduce the effort of linker and source.
https://review.trustedfirmware.org/c/TF-M/tf-m-tests/+/5358
https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/5374
Another side patch: https://review.trustedfirmware.org/c/TF-M/trusted-firmware-m/+/5497