intel_idle: Initialize sysfs after cpuidle driver initialization

Reorder initialization calls to initialize the internal driver data before
sysfs:

Was:
intel_idle_sysfs_init();
intel_idle_cpuidle_driver_init();

Now:
intel_idle_cpuidle_driver_init();
intel_idle_sysfs_init();

Follow the general principle that drivers should initialize internal state
before registering external interfaces like sysfs, avoiding potential usage
before full initialization.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Link: https://patch.msgid.link/20251216080402.156988-2-dedekind1@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: dedekind

drivers/idle/intel_idle.c

@@ -2455,12 +2455,12 @@ static int __init intel_idle_init(void)
 	if (!intel_idle_cpuidle_devices)
 		return -ENOMEM;
 
+	intel_idle_cpuidle_driver_init(&intel_idle_driver);
+
 	retval = intel_idle_sysfs_init();
 	if (retval)
 		pr_warn("failed to initialized sysfs");
 
-	intel_idle_cpuidle_driver_init(&intel_idle_driver);
-
 	retval = cpuidle_register_driver(&intel_idle_driver);
 	if (retval) {
 		struct cpuidle_driver *drv = cpuidle_get_driver();