psa_util: guard ECDSA conversion functions with proper (internal) symbol
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/include/mbedtls/config_adjust_legacy_crypto.h b/include/mbedtls/config_adjust_legacy_crypto.h
index 696266c..833f152 100644
--- a/include/mbedtls/config_adjust_legacy_crypto.h
+++ b/include/mbedtls/config_adjust_legacy_crypto.h
@@ -400,6 +400,13 @@
#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY
#endif
+/* psa_util file features some ECDSA conversion functions, to convert between
+ * legacy's ASN.1 DER format and PSA's raw one. */
+#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_PSA_CRYPTO_C) && \
+ (defined(PSA_WANT_ALG_ECDSA) || defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA))
+#define MBEDTLS_PSA_UTIL_HAVE_ECDSA
+#endif
+
/* Some internal helpers to determine which keys are availble. */
#if (!defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_AES_C)) || \
(defined(MBEDTLS_USE_PSA_CRYPTO) && defined(PSA_WANT_KEY_TYPE_AES))