update sonic-swss submodule (#753)

lguohan · web-flow · commit 42f6b9920ab6 · 2017-06-26T00:48:09.000-07:00
diff --git a/src/sonic-swss b/src/sonic-swss
@@ -1 +1 @@
-Subproject commit 61ad2d14aad28839880654581724818d5260a061
+Subproject commit 83363a7e9ee27292160261a30c7b0f0e6fbe6a1b
