Update images and/or images.csv

[brianlove]

Fix the issues with the image updates encountered in #671:

Traceback (most recent call last):
  File "/Users/bl711/Code/eto-supply-chain/./scripts/preprocess.py", line 812, in <module>
    Preprocess(args)
  File "/Users/bl711/Code/eto-supply-chain/./scripts/preprocess.py", line 92, in __init__
    self.mk_images(args.images, args.images_file, args.output_images_dir)
  File "/Users/bl711/Code/eto-supply-chain/./scripts/preprocess.py", line 758, in mk_images
    image_fi = re.search(r"\((http.*?)\)", image_col)[1]
TypeError: 'NoneType' object is not subscriptable

Issue is happening with node N11 (Wafer handlers)