[Static Runtime] Support aten::to.prim_dtype overload (#64928)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/64928
Added support this overload of `aten::to`:
```
aten::to.prim_dtype(Tensor(a) self, int? dtype, bool non_blocking=False, bool copy=False) -> Tensor(a|b)
```
Test Plan: `buck test caffe2/benchmarks/static_runtime:static_runtime_cpptest -- IndividualOps_to`
Reviewed By: hlu1
Differential Revision: D30901398
fbshipit-source-id: 38ce807c30185e92dd472b404b362f22ac7e4efb
