Curl_ossl_init: call OPENSSL_config for initing engines

 want it to remain functional and buildable with these and later versions

 (older versions may still work but is not what we work hard to maintain):

 OpenSSL      0.9.6

 OpenSSL      0.9.7

 GnuTLS       1.2

 zlib         1.1.4

 libssh2      0.16

#include <openssl/dh.h>

#include <openssl/err.h>

#include <openssl/md5.h>

#include <openssl/conf.h>

#else

#include <rand.h>

#include <x509v3.h>

    return 0;

  OpenSSL_add_all_algorithms();

  OPENSSL_config(NULL);

  return 1;

}