libdpkg: Export parsedb functions in the map file

These will be used soon by the dpkg programs.

lib/dpkg/libdpkg.map

@@ -324,6 +324,11 @@ LIBDPKG_PRIVATE {
 	varbufdependency;
 	varbufrecord;
 	writerecord;
+	parsedb_new;
+	parsedb_open;
+	parsedb_load;
+	parsedb_parse;
+	parsedb_close;
 	parsedb;
 	writedb;