missing header include in SortImpl.cu (#77297)
SortImpl.cu needs to include <thrust/execution_policy.h> for
thrust::host. Depending on the nvidia/thrust or rocThrust version,
transitive inclusion of this header is not guaranteed.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77297
Approved by: https://github.com/peterbell10, https://github.com/albanD
