* cipher/hash-common.h (gcry_md_block_ctx): Replace 'blocksize' with
'blocksize_shift'.
* cipher/hash-common.c (_gcry_md_block_write): Use bit-level operations
instead of division to get number of blocks.
* cipher/gostr2411-94.c (gost3411_init): Initialize 'blocksize_shift'
instead of 'blocksize'.
* cipher/md2.c (md2_init): Ditto.
* cipher/md4.c (md4_init): Ditto.
* cipher/md5.c (md5_init): Ditto.
* cipher/rmd160.c (rmd160_init): Ditto.
* cipher/sha1.c (sha1_init): Ditto.
* cipher/sha256.c (sha256_common_init): Ditto.
* cipher/sha512.c (sha512_init_common): Ditto.
* cipher/sm3.c (sm3_init): Ditto.
* cipher/stribog.c (stribog_init_512): Ditto.
* cipher/tiger.c (do_init): Ditto.
* cipher/whirlpool.c (whirlpool_init): Ditto.