Fix inaccurate dispatch table for fill_ (#53611)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53611
fill_ now uses DispatchStub which means it only works for
CPU/CUDA.
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D26918374
Pulled By: ezyang
fbshipit-source-id: fc899c28f02121e7719b596235cc47a0f3da3aea
