[Quant][PT2E] Enable linear and linear-unary post-op gelu quant recipe for x86 inductor quantizer (#114853)
**Summary**
Add Gelu for linear-unary post-op quantization recipe to x86 inductor quantizer.
**Test plan**
python -m pytest test/quantization/pt2e/test_x86inductor_quantizer.py -k test_linear_unary_gelu
python test/test_quantization.py -k test_linear_unary_with_quantizer_api
Co-authored-by: leslie-fang-intel <leslie.fang@intel.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/114853
Approved by: https://github.com/jgong5, https://github.com/leslie-fang-intel, https://github.com/jerryzh168
