[vulkan] Add max_pool2d op (#58806)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/58806
Adds the max_pool2d op to Vulkan.
Test Plan:
```
cd ~/fbsource
buck build -c ndk.custom_libcxx=false -c pt.enable_qpl=0 //xplat/caffe2:pt_vulkan_api_test_binAndroid\#android-arm64 --show-output
adb push buck-out/gen/xplat/caffe2/pt_vulkan_api_test_binAndroid\#android-arm64 /data/local/tmp/vulkan_api_test
adb shell "/data/local/tmp/vulkan_api_test"
cd -
```
Reviewed By: IvanKobzarev
Differential Revision: D28625049
fbshipit-source-id: 75c82a84f0eca51627e33a6182ef51cb7e82e068
