cpuidle: haltpoll: Only check boot_option_idle_override in x86

hulk inclusion
category: feature
bugzilla: 47727
CVE: NA

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

boot_option_idle_override is defined only in x86/ia64.  Since haltpoll
supports x86 and arm64, let's check boot_option_idle_override only in
x86.
Signed-off-by: NPeng Liang <liangpeng10@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/cpuidle/cpuidle-haltpoll.c

@@ -104,9 +104,11 @@ static int __init haltpoll_init(void)
 	int ret;
 	struct cpuidle_driver *drv = &haltpoll_driver;
 
+#ifdef CONFIG_X86
 	/* Do not load haltpoll if idle= is passed */
 	if (boot_option_idle_override != IDLE_NO_OVERRIDE)
 		return -ENODEV;
+#endif
 
 	cpuidle_poll_state_init(drv);