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- documentation and historical documents: Changelog, docs/**/*.md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>
diff --git a/programs/psa/key_ladder_demo.c b/programs/psa/key_ladder_demo.c
index f5c31de..a79fac6 100644
--- a/programs/psa/key_ladder_demo.c
+++ b/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();
     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 */