pytorch

52df08f8 - [LTC] Adopt the upstreamed c10::Device <=> BackendDevice helpers (#69411)

[LTC] Adopt the upstreamed c10::Device <=> BackendDevice helpers (#69411) Summary: This commit adopts the upstreamed c10::Device <=> BackendDevice helpers. Test Plan: lazy_tensor_core/test/cpp/build/test_ptltc