ACPICA: Update _REV return value to 5

_REV returns the supported ACPI revision level, which is now 5.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index 1f30af6..3748f1a 100644
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -93,7 +93,7 @@
 
 /* Version of ACPI supported */
 
-#define ACPI_CA_SUPPORT_LEVEL           3
+#define ACPI_CA_SUPPORT_LEVEL           5
 
 /* Maximum count for a semaphore object */