[aten] remove shadowed declaration warning (#34014)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34014
Remove warning
```
caffe2/aten/src/ATen/core/op_registration/op_registration.h: In lambda function:
caffe2/aten/src/ATen/core/op_registration/op_registration.h:704:47: warning: declaration of ‘c10::DeviceType t’ shadows a parameter [-Wshadow=compatible-local]
auto deviceTypeToDispatchKey = [](DeviceType t){
^
caffe2/aten/src/ATen/core/op_registration/op_registration.h:703:21: note: shadowed declaration is here
inline CppFunction dispatch(DeviceType t, Func&& raw_f) {
~~~~~~~~~~~^
```
Test Plan: CI
Reviewed By: dzhulgakov
Differential Revision: D20181155
fbshipit-source-id: 41947d171369b9bd7a87e3e367492f9b2165fd6b
