routes/charts.js: Fix missing parameter region

Signed-off-by: Diego Giovane Pasqualin <dpasqualin@c3sl.ufpr.br>

web/routes/charts.js

@@ -25,7 +25,7 @@ exports.get_data = function(req, res) {
             },
             {
                 type: 'avail_sub_cities', file: 'queries/tlbr/avail/sub_cities.sql'
-                , params: [ req.params.state ]
+                , params: [ req.params.region, req.params.state ]
             },
             {
                 type: 'avail_sub_telecenters', file: 'queries/tlbr/avail/sub_telecenters.sql'