!2162 zram: do not waste zram_table_entry flags bits

Merge Pull Request from: @ci-robot 
 
PR sync from: Jinjiang Tu <tujinjiang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/B6S7R77B54GR6T3NUCRY7W5C735344PE/ 
 
https://gitee.com/openeuler/kernel/issues/I7TWVA 
 
Link:https://gitee.com/openeuler/kernel/pulls/2162

 

Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>