!3422 sch_netem: fix issues in netem_change() vs get_dist_table()

Merge Pull Request from: @ci-robot 
 
PR sync from: Ziyang Xuan <william.xuanziyang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/KRJKPBO5X3MQE3MGXGIGDXJ2BHR6ILPZ/ 
 
https://gitee.com/openeuler/kernel/issues/I80FL9 
 
Link:https://gitee.com/openeuler/kernel/pulls/3422

 

Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>