Correct openssl init functions to take build params into account

[baentsch]

          @baentsch you are 100% correct, they should be properly wrapped by `#ifdef`s - if we don't use SHA3 or AES from OpenSSL, it makes no sense to fetch it.

I have originally written this prefetching code because of performance reasons instead of implicit fetching used before, but AFAIK there were many changes since then - e.g. an option to provide 3rd-party callbacks etc so this should be reconsidered

Originally posted by @beldmit in #1942 (comment)