modules: tfm: Disable initial attestation service

Prevents Zephyr from enabling the initial attestation service in TF-M,
due to a dependency it has on an incompatibly-licensed library (QCBOR).

This update checks if either of the following config flags are
enabled at build time:

- `CONFIG_TFM_PARTITION_INITIAL_ATTESTATION`
- `CONFIG_TFM_PSA_TEST_INITIAL_ATTESTATION`

If either of these are set to true, a fatal error will be thrown at
build time, indicating the reason for the failure.

This change can be reverted once a longer term solution to the QCBOR
license issues has been resolved.

Signed-off-by: Kevin Townsend <kevin.townsend@linaro.org>