sched/core: Change depends of SCHED_CORE

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8UVUS


CVE: NA

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Due to the conflict between Core Scheduling and SMT expeller,
so SCHED_CORE and QOS_SCHED_SMT_EXPELLER are mutually exclusive.

Signed-off-by: Lin Shengwang <linshengwang1@huawei.com>
Signed-off-by: Xia Fukun <xiafukun@huawei.com>