Link LazyLinalg with cusolver statically when needed (#79324) (#79522)
By copy-n-pasting the static linking logic from `libtorch_cuda` if
lazylinalg is not enabled
Pull Request resolved: https://github.com/pytorch/pytorch/pull/79324
Approved by: https://github.com/atalman
Co-authored-by: Nikita Shulga <nshulga@fb.com>
