[quant][fix] Fix the call to get_executorch_backend_config (#86338)
Summary:
previously the call failed because there was an infinite loop in _get_share_qparams_ops_configs
Test Plan:
python test/test_quantization.py -k test_get_executorch_backend_config
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Subscribers:
Tasks:
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Pull Request resolved: https://github.com/pytorch/pytorch/pull/86338
Approved by: https://github.com/andrewor14
