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

hulk inclusion
category: feature
bugzilla: 47727
CVE: NA

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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: Peng Liang <liangpeng10@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>