ACPI: Only processor needs CPU_IDLE

ACPI support itself doesn't need CPU_IDLE, only ACPI_PROCESSOR does,
so only ACPI_PROCESSOR should select CPU_IDLE.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 88681ac..79f4178 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -9,7 +9,6 @@
 	depends on PCI
 	depends on PM
 	select PNP
-	select CPU_IDLE
 	default y
 	help
 	  Advanced Configuration and Power Interface (ACPI) support for 
@@ -206,6 +205,7 @@
 config ACPI_PROCESSOR
 	tristate "Processor"
 	select THERMAL
+	select CPU_IDLE
 	default y
 	help
 	  This driver installs ACPI as the idle handler for Linux and uses