Fix missing port in CDL files.

Previously some CDL files where missing the `SOURCE` value.

Fixes https://github.com/google/skywater-pdk/issues/191

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
tree: 7a0d6eac02cd6a83597d4dc3ad94c2721c023db9
  1. cells/
  2. models/
  3. tech/
  4. LICENSE
  5. README.rst