Add misc build components

[ronald-cron-arm]

• [ ] Add build_aes_variations, build_cmake_custom_config_file, build_psa_alt_headers, build_psa_crypto_spm and build_zeroize_checks build components similar to the mbedtls ones (cmake based though).
• [ ] Check that the build components do what they intend to do and give evidence of this in this issue or the associated PR for the benefit of reviewers

Depends on:

• https://github.com/Mbed-TLS/psa-crypto/issues/58 to set up configs