Add missing copyright header

This file was only recently introduced and the missing header slipped through
the review process.

Fixes #20461

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20470)

diff --git a/crypto/bn/rsa_sup_mul.c b/crypto/bn/rsa_sup_mul.c
index 3b57161b4589d61d80cf8ab993253e9d25266ab4..2657b6b36e9978498df9c53d9a4388ae213c9830 100644 (file)
--- a/crypto/bn/rsa_sup_mul.c
+++ b/crypto/bn/rsa_sup_mul.c
@@ -1,3 +1,12 @@
+/*
+ * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
 #include <openssl/e_os2.h>
 #include <stddef.h>
 #include <sys/types.h>