pytorch

ce0c6e82 - Reland "add an API for external backends to register custom device names (#86992)" (#87453)

Reland "add an API for external backends to register custom device names (#86992)" (#87453) Re-land of https://github.com/pytorch/pytorch/pull/86992 This reverts commit a895af92506f206889610251624590798d0deabd. Pull Request resolved: https://github.com/pytorch/pytorch/pull/87453 Approved by: https://github.com/ezyang, https://github.com/albanD