[vulkan] Add _reshape_alias (#62858)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62858
D29792126 (https://github.com/pytorch/pytorch/commit/adb73d3dcffdbcdcb7344413d7e27c8633db030a) changed the behaviour of `reshape()` such that it calls `_reshape_alias()` instead of `view()` in order to avoid duplicating some work such as computing strides.
Vulkan has not yet implemented `_reshape_alias()` so `reshape()` would fail with
```
C++ exception with description "Could not run 'aten::_reshape_alias' with arguments from the 'Vulkan' backend. This could be because the operator doesn't exist for this backend, or was omitted during the selective/custom build process (if using custom build). If you are a Facebook employee using PyTorch on mobile, please visit https://fburl.com/ptmfixes for possible resolutions.
```
For Vulkan there is no concept of strides so it's fine to just have `_reshape_alias()` point to `view()`.
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: kimishpatel
Differential Revision: D30054706
fbshipit-source-id: 770979fa3a0f99bcc2ddaefa4674e5bd79b17c03
