Tools: correct gathering of intermediate results in parallel size-compare-branches

Author: peterbarker

Tools/scripts/size_compare_branches.py

@@ -717,7 +717,7 @@ def gather_results_for_task(self, task):
         have_source_trees = self.parallel_copies is not None and len(self.tasks) <= self.parallel_copies
 
         for vehicle in task.vehicles_to_build:
-            if vehicle == 'bootloader' and board in self.bootloader_blacklist:
+            if vehicle == 'bootloader' and task.board in self.bootloader_blacklist:
                 continue
 
             result["vehicle"][vehicle] = {}