!314 config: disable CONFIG_QOS_SCHED_SMT_EXPELLER

Merge Pull Request from: @NNNNicole 
 
Assuming that cpuA and cpuB are SMT cores , Bind online tasks to cpuA and offline tasks to cpuB, 
Online tasks use 100% cpuA. The online task drives off the offline task on cpuB, which will cause the 
offline task to be suppressed and unable to release competing resources.  If there is a high-priority 
task waiting for the resources held by the offline task, it could't run. This is the classic priority 
inversion problem.
     Therefore, we decided to temporarily disable CONFIG_QOS_SCHED_SMT_EXPELLER, until we fix it. 
 
Link:https://gitee.com/openeuler/kernel/pulls/314

 
Reviewed-by: Zucheng Zheng <zhengzucheng@huawei.com>
Reviewed-by: Liu Chao <liuchao173@huawei.com>
Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>