Merge pull request #464 from fxyfxy777/fix_softmax

fix_softmax

Author: cszdrg

tester/base_config.yaml

@@ -36,6 +36,7 @@ special_accuracy_atol_rtol:
   paddle.lerp : [5, 0.05]
   paddle.nn.functional.upsample: [0.5, 1.5]
   paddle.nn.functional.interpolate: [0.5, 1.5]
+  paddle.nn.functional.softmax: [1, 0.01]
 
 # All configs that report dtype diff when not in not_check_dtype list should be
 # copied to tester/api_config/5_accuracy/accuracy_gpu_error_dtype_diff.txt