[Specialized Kernel] Propagate Specialized Kernel Support through ComputeCodegenUnboxedKernels (#103113)
Updating ComputeCodegenUnboxedKernels to accept and write out kernel information to RegisterCodegenUnboxedKernels.cpp
Differential Revision: [D46486195](https://our.internmc.facebook.com/intern/diff/D46486195/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/103113
Approved by: https://github.com/larryliu0820, https://github.com/kirklandsign
