Enable MBEDTLS_USE_PSA_CRYPTO by default

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 80009c0..d831c8d 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -1955,7 +1955,7 @@
  *
  * Uncomment this to enable internal use of PSA Crypto and new associated APIs.
  */
-//#define MBEDTLS_USE_PSA_CRYPTO
+#define MBEDTLS_USE_PSA_CRYPTO
 
 /**
  * \def MBEDTLS_PSA_CRYPTO_CONFIG