Fix AWQ export when quantization of some layers are disabled

[meenchen]

What does this PR do?

Type of change: Bug fix

Overview:

Fix AWQ export when quantization of some layers are disabled

Usage

# Add a code snippet demonstrating how to use this

Testing

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• Is this change backward compatible?: Yes/No
• Did you write any new necessary tests?: Yes/No
• Did you add or update any necessary documentation?: Yes/No
• Did you update Changelog?: Yes/No

Additional Information

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.69%. Comparing base (03dc386) to head (1ef4a0e).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #721   +/-   ##
=======================================
  Coverage   74.69%   74.69%           
=======================================
  Files         192      192           
  Lines       18946    18946           
=======================================
  Hits        14152    14152           
  Misses       4794     4794           

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