[Quant][Inductor] Enable quantization linear pattern fusion with int8_mixed_bf16 for gelu (#116004)
**Summary**
Enable QLinear Unary pattern for gelu with int8_mix_bf16
**Test plan**
python test/inductor/test_mkldnn_pattern_matcher.py -k test_qlinear_gelu_int8_mixed_bf16
Co-authored-by: leslie-fang-intel <leslie.fang@intel.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/116004
Approved by: https://github.com/jgong5, https://github.com/leslie-fang-intel
ghstack dependencies: #114853, #114854
