gostr3411_94: set better burn stack depth estimate
* cipher/gost28147.c (_gcry_gost_enc_one): Account function stack to burn stack depth. * cipher/gostr3411-94.c (max): New macro. (do_hash_step, transform): Return stack burn depth.
- Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>