[Vulkan][TCC] Add tests for conv2d prepack context (#88316)
Summary:
Implement Vulkan tests for the create/run context functions in Convolution.cpp, their transposed versions and their backwards compatible versions:
- create_conv2d_context
- run_conv2d_context
- create_tconv2d_context
- run_tconv2d_context
- conv2d_clamp_prepack
- conv2d_clamp_run
Test Plan:
On Mac
```
cd ~/fbsource
buck run -c pt.vulkan_full_precision=1 //xplat/caffe2:pt_vulkan_api_test_binAppleMac\#macosx-arm64
```
On Android
```
cd ~/fbsource
buck build -c ndk.custom_libcxx=false -c pt.enable_qpl=0 -c pt.vulkan_full_precision=1 //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"
```
Reviewed By: salilsdesai
Differential Revision: D40935343
Pull Request resolved: https://github.com/pytorch/pytorch/pull/88316
Approved by: https://github.com/salilsdesai
