Manually fix two remaining instances of old macros

Unless I missed something, all remaining instance of all macros are in
files where it makes sense to use these. I went over the output of:

    git grep -c -E 'MBEDTLS_(MD5|RIPEMD160|SHA[0-9]*)_C'

and I think all the files listed fall into one of the following
acceptable categories:

- documentation and historical documents: Changelog, docs/**/*.md
- config files and related: mbedtls_config.h, configs/*.h,
  check_config.h, config_psa.h, etc.
- scripts that build/modify configs: all.sh, depends.py,
  set_psa_test_dependencies.py, etc.
- implementation of MD or PSA or related: md.h, psa_util.h, etc. and
  corresponding test suites
- implementation of hashes: md5.c, sha256.h, etc. and corresponding test
  suites
- two example programs using a low-level hash API: hash/hello.c,
  pkey/ecdsa.c
- test/benchmark.c, test/selftest.c: actually want our built-in
  implementations
- a function in test_suite_psa_crypto_storage_format that is
  specifically for checking if the hash is built in.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>

programs/psa/key_ladder_demo.c

@@ -62,13 +62,13 @@
 #include <psa/crypto.h>
 
 /* If the build options we need are not enabled, compile a placeholder. */
-#if !defined(MBEDTLS_SHA256_C) || !defined(MBEDTLS_MD_C) ||      \
+#if !defined(PSA_WANT_ALG_SHA_256) || !defined(MBEDTLS_MD_C) ||      \
     !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_CCM_C) ||        \
     !defined(MBEDTLS_PSA_CRYPTO_C) || !defined(MBEDTLS_FS_IO) || \
     defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER)
 int main(void)
 {
-    printf("MBEDTLS_SHA256_C and/or MBEDTLS_MD_C and/or "
+    printf("PSA_WANT_ALG_SHA_256 and/or MBEDTLS_MD_C and/or "
            "MBEDTLS_AES_C and/or MBEDTLS_CCM_C and/or "
            "MBEDTLS_PSA_CRYPTO_C and/or MBEDTLS_FS_IO "
            "not defined and/or MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER "
@@ -698,6 +698,6 @@ usage_failure:
     usage();
     return EXIT_FAILURE;
 }
-#endif /* MBEDTLS_SHA256_C && MBEDTLS_MD_C &&
+#endif /* PSA_WANT_ALG_SHA_256 && MBEDTLS_MD_C &&
           MBEDTLS_AES_C && MBEDTLS_CCM_C &&
           MBEDTLS_PSA_CRYPTO_C && MBEDTLS_FS_IO */

tests/include/test/psa_exercise_key.h

@@ -34,7 +34,7 @@
  */
 #if defined(PSA_WANT_ALG_MD5)
 #define KNOWN_SUPPORTED_HASH_ALG PSA_ALG_MD5
-/* MBEDTLS_RIPEMD160_C omitted. This is necessary for the sake of
+/* PSA_WANT_ALG_RIPEMD160 omitted. This is necessary for the sake of
  * exercise_signature_key() because Mbed TLS doesn't support RIPEMD160
  * in RSA PKCS#1v1.5 signatures. A RIPEMD160-only configuration would be
  * implausible anyway. */

tests/suites/test_suite_psa_crypto_se_driver_hal.function

@@ -720,7 +720,7 @@ static int smoke_test_key(mbedtls_svc_key_id_t key)
                                         buffer, sizeof(buffer), NULL, 0,
                                         buffer, sizeof(buffer), &length));
 
-#if defined(MBEDTLS_SHA256_C)
+#if defined(PSA_WANT_ALG_SHA_256)
     /* Try the key in a plain key derivation. */
     PSA_ASSERT(psa_key_derivation_setup(&derivation_operation,
                                         PSA_ALG_HKDF(PSA_ALG_SHA_256)));
@@ -753,7 +753,7 @@ static int smoke_test_key(mbedtls_svc_key_id_t key)
                          alg, key, buffer, length,
                          buffer, sizeof(buffer), &length));
     }
-#endif /* MBEDTLS_SHA256_C */
+#endif /* PSA_WANT_ALG_SHA_256 */
 
     ok = 1;