!10045 [AutoParallel]Fix dropout log bug

From: @lichen666
Reviewed-by: @limingqi107,@stsuteng
Signed-off-by: @limingqi107,@stsuteng

mindspore/ccsrc/frontend/parallel/ops_info/activation_info.cc

@@ -97,6 +97,7 @@ Status Activation::GenerateStrategies(int64_t stage_id) {
     return FAILED;
   }
 
+  is_auto_parallel_ = true;
   Shape input0_split(inputs_shape_[0].size(), 1);
   Shapes splittable_inputs = {input0_split};