Don't use one shot API for SSLv3.

SSLv3 (specifically with client auth) cannot use one shot APIs: the digested
data and the master secret are handled in separate update operations. So
in the special case of SSLv3 use the streaming API.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3527)