Move cudaDeviceProp to ATen (#14834)
Summary:
This PR moves `deviceProperties` from `THCState` struct to `CUDAContext` in ATen and hence, takes one more step towards removing `THCState`.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/14834
Differential Revision: D13633956
Pulled By: soumith
fbshipit-source-id: 51820ac224fc566f17aa92570fd378cff4248596
