Adjust scripts to accommodate public header move

[felixc-arm]

Companion PR to Mbed-TLS/TF-PSA-Crypto#247. Supports the move of public headers from tf-psa-crypto/drivers/builtin/include/mbedtls to tf-psa-crypto/include/mbedtls.

Contributes to Mbed-TLS/TF-PSA-Crypto#223

PR checklist

Please add the numbers (or links) of the associated pull requests for consuming branches. You can omit branches where this pull request is not needed.

• TF-PSA-Crypto PR provided: Move public legacy headers to /include/mbedtls TF-PSA-Crypto#247
• development PR provided: Adjust build scripts to accommodate public header move mbedtls#10122
• 3.6 PR not required because: 4.0/1.0 change only

[felixc-arm]

I'm not entirely sure why this failed the CI - the failures seem unrelated and are perhaps caused by the last commit 60c8e52? In any case the mbedtls CI passes using this patch (Mbed-TLS/mbedtls#10122) & the TF-PSA-Crypto patch.

[gilles-peskine-arm]

All the CI failures are in 3.6 jobs. But I don't understand the way in which they're failing, it doesn't seem related to your changes.

******************************************************************
* test_default_out_of_box: program demos: make, default config (out-of-box) 
* Wed Apr  9 10:12:11 UTC 2025
******************************************************************
programs/psa/psa_hash_demo.sh: 46: programs/psa/../../framework/scripts/demo_common.sh: is_mbedtls_root: not found
programs/psa/psa_hash_demo.sh: 52: programs/psa/../../framework/scripts/demo_common.sh: is_tf_psa_crypto_root: not found
…

[gilles-peskine-arm]

It's unclear how to merge the consuming pull requests in crypto and mbedtls development, but the framework PR doesn't break anything on its own, so I'm going ahead and merging it.