Add mkldnn mul operator (#20575)
Summary:
### mkldnn backward ops list:
- [ ] \(https://github.com/pytorch/pytorch/pull/20567) Add aten mkldnn conv2d backward operator :yellow_heart:
- [ ] \(https://github.com/pytorch/pytorch/pull/20570) Add aten mkldnn backward ops: relu, linear and reshape :yellow_heart:
- [ ] \(https://github.com/pytorch/pytorch/pull/20571) Add aten mkldnn backward ops: max_pool2d, avg_pool2d and adaptive_avg_poo2d :yellow_heart:
- [ ] \(https://github.com/pytorch/pytorch/pull/20572) Add aten mkldnn batchnorm backward operator :yellow_heart:
- [ ] \(https://github.com/pytorch/pytorch/pull/20573) Add aten mkldnn zero_ operator:yellow_heart:
- [ ] \(https://github.com/pytorch/pytorch/pull/20575) Add mkldnn mul operator :yellow_heart:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/20575
Differential Revision: D15799529
Pulled By: bddppq
fbshipit-source-id: 4887d8ef1a0e316ad9db199b657d9481fc13e486
