!8730 fix the bug that Conv2dBnWithoutFoldQuant param momentum value is changed.

From: @xiaoyisd
Reviewed-by: @sanjaychan,@chenfei52
Signed-off-by: @sanjaychan

mindspore/nn/layer/quant.py

@@ -845,7 +845,7 @@ class Conv2dBnWithoutFoldQuant(Cell):
                                                      channel_axis=channel_axis,
                                                      num_channels=out_channels,
                                                      quant_dtype=quant_dtype)
-        self.batchnorm = BatchNorm2d(out_channels, eps=eps, momentum=1-momentum)
+        self.batchnorm = BatchNorm2d(out_channels, eps=eps, momentum=momentum)
 
     def construct(self, x):
         weight = self.fake_quant_weight(self.weight)