extending afalg with aes-cbc-192/256, afalgtest.c also updated accordingly....

extending afalg with aes-cbc-192/256, afalgtest.c also updated accordingly. comments from matt, Stephen considered

fix  indentation, remove printf from afalgtest.c

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4717)