[clang] [Driver][LTO] Copy fix empty stats filename to AMDGPU, HIPAMD, MinGW (PR #74178)

[Fangrui Song via cfe-commits]

MaskRay wrote:

At this point, it does seem that changing `addLTOOption` to accept `Inputs` instead of `Input` will eliminate duplication and ensure consistency among targets.

https://github.com/llvm/llvm-project/pull/74178