Fixes 96676 (#96714)
Fixes #96676
PR #95942 introduced some changes in function implementations to replace const parameters by const referenced ones. However, GetBackendDevice was missed and remains the old signature. This quick fix solves the type mismatch.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96714
Approved by: https://github.com/antoniojkim, https://github.com/Skylion007
