Fix a crash in the speed command with wrap ciphers

e.g. openssl speed -evp id-aes256-wrap-pad
was crashing because the return code from EVP_CipherInit_ex
was ignored.
Not going to allow that cipher mode because wrap ciphers
produces more bytes output than the input length
and EVP_Update_loop is not really prepared for that.

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8739)