Backport to v2.4.

Backport to v2.4.

  *) mod_ssl: Improve compatibility with OpenSSL 3, fix build warnings about
     deprecated ENGINE_ API, honor OPENSSL_API_COMPAT setting while defaulting
     to compatibitily with version 1.1.1 (including ENGINEs / SSLCryptoDevice).
     mod_ssl: Disable the OpenSSL ENGINE API when OPENSSL_NO_ENGINE is set.
     Allow for "SSLCryptoDevice builtin" if the ENGINE API is not available,
     notably with OpenSSL >= 3.  PR 68080.
     trunk patch: http://svn.apache.org/r1908537
                  http://svn.apache.org/r1908539
                  http://svn.apache.org/r1908542
                  http://svn.apache.org/r1913616
                  http://svn.apache.org/r1913815
                  http://svn.apache.org/r1913816
                  http://svn.apache.org/r1908542
                  http://svn.apache.org/r1913832
     2.4.x patch: https://patch-diff.githubusercontent.com/raw/apache/httpd/pull/381.diff
                  (https://github.com/apache/httpd/pull/381)
     +1: ylavic, jorton, minfrin

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1913912 13f79535-47bb-0310-9956-ffa450edef68