ACPICA: Add post-order callback to acpi_walk_namespace

The existing interface only has a pre-order callback. This change
adds an additional parameter for a post-order callback which will
be more useful for bus scans. ACPICA BZ 779.

Also update the external calls to acpi_walk_namespace.

http://www.acpica.org/bugzilla/show_bug.cgi?id=779

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 2bad613..2deb986 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -634,8 +634,8 @@
 	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 				     ACPI_NS_WALK_NO_UNLOCK |
 				     ACPI_NS_WALK_TEMP_NODES,
-				     acpi_ns_dump_one_object, (void *)&info,
-				     NULL);
+				     acpi_ns_dump_one_object, NULL,
+				     (void *)&info, NULL);
 }
 #endif				/* ACPI_FUTURE_USAGE */