sched/fair: Add cmdline nosmtexpell

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6SIY2



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Add cmdline nosmtexpell to disable qos_smt_expell when we want to close.

Signed-off-by: Guan Jing <guanjing6@huawei.com>