basesrc: say we handle RECONFIGURE event

We handle the RECONFIGURE event so return TRUE from the event handler.

libs/gst/base/gstbasesrc.c

@@ -1854,6 +1854,9 @@ gst_base_src_default_event (GstBaseSrc * src, GstEvent * event)
       result = TRUE;
       break;
     }
+    case GST_EVENT_RECONFIGURE:
+      result = TRUE;
+      break;
     default:
       result = FALSE;
       break;