[ACPI] ACPI_HOTPLUG_CPU Kconfig dependency update

prevent:

HOTPLUG_CPU=y
ACPI_PROCESSOR=y
ACPI_HOTPLUG_CPU=n
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/Kconfig

@@ -154,12 +154,10 @@ config ACPI_PROCESSOR
 	  support it.
 
 config ACPI_HOTPLUG_CPU
-	bool "Processor Hotplug (EXPERIMENTAL)"
-	depends on ACPI_PROCESSOR && HOTPLUG_CPU && EXPERIMENTAL
+	bool
+	depends on ACPI_PROCESSOR && HOTPLUG_CPU
 	select ACPI_CONTAINER
-	default n
-	 ---help---
-	 Select this option if your platform support physical CPU hotplug.
+	default y
 
 config ACPI_THERMAL
 	tristate "Thermal Zone"