Update overuse_report.cpp

Author: Wang-Yuanqi-source

vpr/src/route/overuse_report.cpp

@@ -222,7 +222,7 @@ static void report_overused_ipin_opin(std::ostream& os,
     t_physical_tile_type_ptr physical_tile = device_ctx.grid.get_physical_type({grid_x, grid_y, grid_layer});
     const VibInf* vib;
     if (!device_ctx.arch->vib_infs.empty()) {
-        vib = device_ctx.vib_grid[grid_layer][grid_x][grid_y];
+        vib = device_ctx.vib_grid.get_vib(grid_layer, grid_x, grid_y);
     }
     else {
         vib = nullptr;