Add an <openssl/ossl_typ.h> compatibility header.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)
--- /dev/null
+/*
+ * Copyright 2019 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
+ */
+
+/*
+ * The original <openssl/ossl_typ.h> was renamed to <openssl/types.h>
+ *
+ * This header file only exists for compatibility reasons with older
+ * applications which #include <openssl/ossl_typ.h>.
+ */
+# include <openssl/types.h>