sched: Enable qos scheduler config

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8MF4R


CVE: NA

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Enable CONFIG_QOS_SCHED to support qos scheduler.

Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: Wenyu Huang <huangwenyu5@huawei.com>