[VPR] code format fix

Author: tangxifan

vpr/src/util/vpr_utils.cpp

@@ -2362,7 +2362,7 @@ int get_post_placement_physical_pin(t_physical_tile_type_ptr physical_tile,
     int max_logical_block_num_pins = logical_block->pb_type->num_pins;
     for (t_logical_block_type_ptr eq_lb : physical_tile->sub_tiles[sub_tile_index].equivalent_sites) {
         max_logical_block_num_pins = std::max(max_logical_block_num_pins, eq_lb->pb_type->num_pins);
-    } 
+    }
 
     return relative_capacity * max_logical_block_num_pins
            + physical_tile->sub_tiles[sub_tile_index].sub_tile_to_tile_pin_indices[sub_tile_physical_pin];

vpr/src/util/vpr_utils.h

@@ -220,7 +220,7 @@ int get_logical_block_physical_sub_tile_index(t_physical_tile_type_ptr physical_
 //This function considers if a given offset is in the range of sub tile capacity
 //
 //  (First pin index at current sub-tile)                                     (The wanted pin index)
-//                                                                                      
+//
 //  |                                                               |<----- pin ------->|
 //  v                                                                                   v
 //