ARM: cpuidle: Add support for cpuidle-haltpoll driver for ARM

hulk inclusion
category: feature
bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=34


CVE: NA

Add support for cpuidle-haltpoll driver for ARM.
Allow arm to use the couidle-haltpoll driver.

Signed-off-by: Xiangyou Xie <xiexiangyou@huawei.com>
Signed-off-by: Yubo Miao <miaoyubo@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jiajun Chen <chenjiajun8@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>