sched/idle: Add IAS_SMART_HALT_POLL config for smart halt polling feature

hulk inclusion
category: feature
bugzilla: 176961 https://gitee.com/openeuler/kernel/issues/I4E05T



-------------------

Add IAS_SMART_HALT_POLL config for smart halt polling feature

Signed-off-by: Li Hua <hucool.lihua@huawei.com>
Reviewed-by: Chen Hui <judy.chenhui@huawei.com>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>