[submodule] update sonic-swss submodule (#885)

oleksandrivantsiv · lguohan · commit 232acbf2176e · 2017-08-14T11:41:44.000-07:00
diff --git a/src/sonic-swss b/src/sonic-swss
@@ -1 +1 @@
-Subproject commit ab31a9af7ef2c5ea9fe5f0f89f0a61b3ec0f83bf
+Subproject commit f9b55d30276d1a6ab94e7321d9b2a3bf076fd683
