ssl: don't require MBEDTLS_ECP_DP with TLS1.3

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 2f6d30e..ee48b05 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4975,21 +4975,21 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ANY_ALLOWED_ENABLED) && \
     defined(MBEDTLS_MD_CAN_SHA256) && \
-    defined(MBEDTLS_HAVE_SECP256R1)
+    defined(PSA_WANT_ECC_SECP_R1_256)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256,
     // == MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA256)
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ANY_ALLOWED_ENABLED) && \
     defined(MBEDTLS_MD_CAN_SHA384) && \
-    defined(MBEDTLS_HAVE_SECP384R1)
+    defined(PSA_WANT_ECC_SECP_R1_384)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384,
     // == MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA384)
 #endif
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDSA_CERT_REQ_ANY_ALLOWED_ENABLED) && \
     defined(MBEDTLS_MD_CAN_SHA512) && \
-    defined(MBEDTLS_HAVE_SECP521R1)
+    defined(PSA_WANT_ECC_SECP_R1_521)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512,
     // == MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA512)
 #endif