[vpr][route][rr_graph] fix formatting

Author: amin1377

vpr/src/route/rr_graph_generation/rr_graph.cpp

@@ -1130,7 +1130,12 @@ static void build_rr_graph(e_graph_type graph_type,
     // Save the channel widths for the newly constructed graph
     device_ctx.chan_width = nodes_per_chan;
 
-    rr_graph_externals(segment_inf, segment_inf_x, segment_inf_y, segment_inf_z, wire_to_rr_ipin_switch, base_cost_type);
+    rr_graph_externals(segment_inf,
+         segment_inf_x,
+         segment_inf_y,
+         segment_inf_z,
+         wire_to_rr_ipin_switch,
+         base_cost_type);
 
     const VibDeviceGrid vib_grid;
     check_rr_graph(device_ctx.rr_graph,