ACPI: update comment

Fixing wrong description for acpi_gpe_sleep_prepare().

acpi_gpe_sleep_prepare() had only used on power off and was changed
to also used on entering some sleep state. However its description
isn't changed yet.

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/acpi/sleep/wakeup.c

diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c
index af1dbab..fab8f26 100644
--- a/drivers/acpi/sleep/wakeup.c
+++ b/drivers/acpi/sleep/wakeup.c
@@ -183,11 +183,11 @@
 #endif
 
 /*
- * Disable all wakeup GPEs before power off.
- * 
+ * Disable all wakeup GPEs before entering requested sleep state.
+ *	@sleep_state:	ACPI state
  * Since acpi_enter_sleep_state() will disable all
  * RUNTIME GPEs, we simply mark all GPES that
- * are not enabled for wakeup from S5 as RUNTIME.
+ * are not enabled for wakeup from requested state as RUNTIME.
  */
 void acpi_gpe_sleep_prepare(u32 sleep_state)
 {