[quant] Add quantized::conv1d op benchmarck (#38332)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/38332
Test Plan:
python -m pt.qconv_test --test QConv1d_N1_IC128_OC256_L64_G1_kernel3_stride1_pad0
Forward Execution Time (us) : 147.844
python -m pt.conv_test --test Conv1d_IC128_OC256_kernel3_stride1_N1_L64_cpu
Forward Execution Time (us) : 470.750
Imported from OSS
Differential Revision: D21553662
fbshipit-source-id: 9c240a141f9cd3a82a20aa462e8e5577e002a387
