fix fluid issue (#1810)

Author: lugimzzz

paddleslim/quant/quanters/channel_wise_abs_max.py

@@ -16,8 +16,8 @@
 
 import paddle
 from paddle import _legacy_C_ops
-from paddle.fluid.data_feeder import check_variable_and_dtype
-from paddle.fluid.framework import _create_tensor
+from paddle.base.data_feeder import check_variable_and_dtype
+from paddle.base.framework import _create_tensor
 from paddle.framework import ParamAttr, core
 from paddle.nn.initializer import Constant
 from paddle.utils import unique_name