mod_ssl: Disable the OpenSSL ENGINE API when OPENSSL_NO_ENGINE is set. PR 68080

mod_ssl: Disable the OpenSSL ENGINE API when OPENSSL_NO_ENGINE is set.  PR 68080

Also, always allow for "SSLCryptoDevice builtin" even if the ENGINE API is not
available, OPENSSL_NO_ENGINE or more generally with the new API (providers)
available since OpenSSL >= 3.

* ssl_private.h: Set MODSSL_HAVE_ENGINE_API to 0 if OPENSSL_NO_ENGINE.

* mod_ssl.c, ssl_engine_config.c: Don't depend on HAVE_OPENSSL_ENGINE_H and
  HAVE_ENGINE_INIT to provide [ssl_cmd_]SSLCryptoDevice.

Submitted by: ylavic, jorton

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1913815 13f79535-47bb-0310-9956-ffa450edef68