[quant] support linear_relu_dynamic for qnnpack backend (#63820)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63820
Adds support in the operator directly to call relu operator if relu fusion is enabled.
Once QNNPACK natively supports relu fusion in the linear_dynamic this can be removed
Test Plan:
python test/test_quantization.py TestDynamicQuantizedLinear.test_qlinear
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D30502813
fbshipit-source-id: 3352ee5f73e482b6d1941f389d720a461b84ba23
