Style fixes after PR review

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/library/psa_crypto_driver_wrappers.h b/library/psa_crypto_driver_wrappers.h
index f0b5db0..4299379 100644
--- a/library/psa_crypto_driver_wrappers.h
+++ b/library/psa_crypto_driver_wrappers.h
@@ -1,7 +1,7 @@
 /*
  *  Function signatures for functionality that can be provided by
  *  cryptographic accelerators.
- *  Warning: auto-generated file.
+ *  Warning: This file will be auto-generated in the future.
  */
 /*  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0