When deprecated symbols are removed, ensure liblegacy has WHIRLPOOL
When deprecated symbols are removed, ensure liblegacy has WHIRLPOOL

The legacy module implements WHIRLPOOL, so we must ensure it has the
full functionality, even when libcrypto stops exporting the symbols.

Reviewed-by: Matt Caswell <1fa2ef4755a9226cb9a0a4840bd89b158ac71391@openssl.org>
Reviewed-by: Tomas Mraz <973cc78d8b4cb00714230ba9be0225e917ab4ac6@fedoraproject.org>
Reviewed-by: Paul Dale <bc4a6b4cd7a8395c734c8eb5aef04a9c30188c85@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10779)

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl