In apps_startup(), call OPENSSL_init_ssl() rather than OPENSSL_init_crypto()

Otherwise, any command that relies on ssl modules may fail, because
SSL_add_ssl_module() will be called after the config file has already
been loaded.

Fixes #4788

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4792)

(cherry picked from commit 0488c0bb)