fix(configure): fails on ihp user submissions

IHP submissions do not have powered netlists, so add a flag to specify that in the shuttles config.yaml file.

configure.py

@@ -82,7 +82,7 @@ def __init__(self, config: Config, args):
  project.golden_harden()
 
  if args.update_shuttle:
- project.check_ports(True)
+ project.check_ports(config.powered_netlists, True)
  project.check_num_cells()
 
  self.projects.append(project)