A few provider implementations need this to build correctly with a
'no-deprecated' configuration.
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/10766)
Also Add ability for providers to dynamically exclude cipher algorithms.
Cipher algorithms are only returned from providers if their capable() method is either NULL,
or the method returns 1.
This is mainly required for ciphers that only have hardware implementations.
If there is no hardware support, then the algorithm needs to be not available.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10146)