driver core: make /sys/power a kobject

/sys/power should not be a kset, that's overkill.  This patch renames it
to power_kset and fixes up all usages of it in the tree.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c
index 90706cf..e95fc15 100644
--- a/arch/powerpc/platforms/pseries/power.c
+++ b/arch/powerpc/platforms/pseries/power.c
@@ -53,7 +53,7 @@
 	__ATTR(auto_poweron, 0644, auto_poweron_show, auto_poweron_store);
 
 #ifndef CONFIG_PM
-struct kset *power_kset;
+struct kobject *power_kobj;
 
 static struct attribute *g[] = {
         &auto_poweron_attr.attr,
@@ -66,16 +66,16 @@
 
 static int __init pm_init(void)
 {
-	power_kset = kset_create_and_add("power", NULL, NULL);
-	if (!power_kset)
+	power_kobj = kobject_create_and_add("power", NULL);
+	if (!power_kobj)
 		return -ENOMEM;
-	return sysfs_create_group(&power_kset->kobj, &attr_group);
+	return sysfs_create_group(power_kobj, &attr_group);
 }
 core_initcall(pm_init);
 #else
 static int __init apo_pm_init(void)
 {
-	return (sysfs_create_file(&power_kset->kobj, &auto_poweron_attr));
+	return (sysfs_create_file(power_kobj, &auto_poweron_attr));
 }
 __initcall(apo_pm_init);
 #endif