[quant][pt2] Support cudnn_batch_norm in QAT fusion (#109908)
Summary: Today, we get different batch norm ops depending on
the device the model is placed on at export time. Exporting
`model.cpu()` gives `_native_batch_norm_legit`, while exporting
`model.cuda()` gives `cudnn_batch_norm`. QAT fusion currently
only supports the former and silently ignores the latter. This
commit fixes this by additionally matching on the latter op
during QAT fusion.
Test Plan:
python test/test_quantization.py TestQuantizePT2EQAT.test_qat_conv_bn_fusion
python test/test_quantization.py TestQuantizePT2EQAT.test_qat_conv_bn_relu_fusion
Reviewers: jerryzh168, kimishpatel
Subscribers: jerryzh168, kimishpatel, supriyar
Differential Revision: [D49615145](https://our.internmc.facebook.com/intern/diff/D49615145)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/109908
Approved by: https://github.com/jerryzh168
