Avoid deprecated OPENSSL_config when using 1.1.x

OpenSSL 1.1.x soft-deprecated OPENSSL_config in favour of
OPENSSL_init_crypto; pointed out by Jakub Jelen

openbsd-compat/openssl-compat.c

@@ -75,7 +75,13 @@ ssh_OpenSSL_add_all_algorithms(void)
 	/* Enable use of crypto hardware */
 	ENGINE_load_builtin_engines();
 	ENGINE_register_all_complete();
+
+#if OPENSSL_VERSION_NUMBER < 0x10001000L
 	OPENSSL_config(NULL);
+#else
+	OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS |
+	    OPENSSL_INIT_ADD_ALL_DIGESTS | OPENSSL_INIT_LOAD_CONFIG);
+#endif
 }
 #endif