!3972 arm64: make cma=0 as default for openeuler

Merge Pull Request from: @ci-robot 
 
PR sync from: Nanyong Sun <sunnanyong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/W5RBY5HWHUYWM7D2ZTGIFBP74ATJLMSW/ 
 
https://gitee.com/openeuler/kernel/issues/I8VV2H 
 
Link:https://gitee.com/openeuler/kernel/pulls/3972

 

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