Add cuDNN new batch normalization #2651
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emcastillo
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Jenkins, test this please |
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This PR adds support for new batch normalization interface introduced in cuDNN 7.4.1.
https://docs.nvidia.com/deeplearning/sdk/cudnn-release-notes/rel_741.html
cupy.cudnn.batch_normalization_forward_training_ex()returns an extra value "reserve space" that can be passed to the backward API for faster computation.See also: chainer/chainer#7620