[sonic_utilities] Update submodule (#2376)

jleveque · lguohan · commit 3f530241d961 · 2018-12-11T18:00:44.000-08:00
diff --git a/src/sonic-utilities b/src/sonic-utilities
@@ -1 +1 @@
-Subproject commit 17519cf5b64dee857659cb80347dc121174cb76a
+Subproject commit 408a991f83b8658aabce212efc2386e8cc42022c
