Update MaxMind DB library to current master.

config/common/maxminddb_config.h

@@ -0,0 +1,14 @@
+#ifndef MAXMINDDB_CONFIG_H
+#define MAXMINDDB_CONFIG_H
+
+#ifndef MMDB_UINT128_USING_MODE
+/* Define as 1 if we we use unsigned int __atribute__ ((__mode__(TI))) for uint128 values */
+#define MMDB_UINT128_USING_MODE 1
+#endif
+
+#ifndef MMDB_UINT128_IS_BYTE_ARRAY
+/* Define as 1 if we don't have an unsigned __int128 type */
+#undef MMDB_UINT128_IS_BYTE_ARRAY
+#endif
+
+#endif                          /* MAXMINDDB_CONFIG_H */