remove PSA_HAVE_FULL_ECDH symbol

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/include/mbedtls/check_config.h b/include/mbedtls/check_config.h
index 8e1accd..3001f7d 100644
--- a/include/mbedtls/check_config.h
+++ b/include/mbedtls/check_config.h
@@ -306,7 +306,7 @@
 
 /* Helper for ECDH dependencies, will be undefined at the end of the file */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-#if defined(PSA_HAVE_FULL_ECDH)
+#if defined(PSA_WANT_ALG_ECDH) && defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR)
 #define MBEDTLS_PK_HAVE_ECDH
 #endif
 #else /* MBEDTLS_USE_PSA_CRYPTO */