Revert "ACPICA: revert "acpi_serialize" changes"

This reverts commit a8f4af6dc6600980885c594f52eecd60edd62013.
Thus restoring ACPICA's new acpi_serialize code.

This commit by itself may cause a regression, but
it is reverted in this order so that subsequent
reverts reverts under this one can be made
without conflict.

Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index cae786c..3a799b9 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -196,15 +196,11 @@
 		notify_info->notify.value = (u16) notify_value;
 		notify_info->notify.handler_obj = handler_obj;
 
-		acpi_ex_exit_interpreter();
+		acpi_ex_relinquish_interpreter();
 
 		acpi_ev_notify_dispatch(notify_info);
 
-		status = acpi_ex_enter_interpreter();
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-
+		acpi_ex_reacquire_interpreter();
 	}
 
 	if (!handler_obj) {