[git commit master 1/1] libbb/hash_md5_sha: use common ctx and code for md5 and sha1/256

[Denys Vlasenko]

commit: http://git.busybox.net/busybox/commit/?id=302ad1450e104460abd3aae60b7f40d8a88f43df
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master

function                                             old     new   delta
sha256_process_block64                               421     433     +12
md5_crypt                                            578     587      +9
md5_begin                                             43      50      +7
md5_hash                                              99      97      -2
sha1_end                                              85      82      -3
md5_end                                               36      31      -5
common64_end                                          93      86      -7
sha1_hash                                             97       -     -97

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>

Patch is too large, so refusing to show it