[quant][core][gpu][improvement] Integrated quantized cudnn max pool2d with existing quantized_max_pool2d (#76129)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/76129
Previously, quantized_max_pool2d_cudnn was made available to the
frontend through torch.ops.quantized.max_pool2d.
We improve the integration by also making it available through
torch.max_pool2d, which is made possible by registering
quantized_max_pool2d_cudnn in native_functions.yaml under
quantized_max_pool2d, which is called in max_pool2d.
Ideally and ultimately, we will get rid of the quantized_max_pool2d
registration in native_functions.yaml, and directly register
quantized_max_pool2d and quantized_max_pool2d_cudnn under max_pool2d,
but current support for quantized dispatch keys blocks us from doing so.
Test Plan:
```
python test/run_tests.py
```
```
python test/run_tests.py
```
Differential Revision:
D35789078
D35789078
Reviewed By: jerryzh168
Pulled By: dzdang
fbshipit-source-id: 5d8220255bfab663b4779b5d3c66dea9f79d8ee7
(cherry picked from commit c27164da29043f7dc9a4c27d24a93cd37162c23e)
