ACPI: restore CONFIG_ACPI_SLEEP

Restore the 2.6.22 CONFIG_ACPI_SLEEP build option, but now shadowing the
new CONFIG_PM_SLEEP option.

Signed-off-by: Len Brown <len.brown@intel.com>
[ Modified to work with the PM config setup changes. ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index 777d37a..202acb9 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -147,7 +147,7 @@
 /*--------------------------------------------------------------------------
                                   Suspend/Resume
   -------------------------------------------------------------------------- */
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_ACPI_SLEEP
 extern int acpi_sleep_init(void);
 #else
 static inline int acpi_sleep_init(void) { return 0; }