[submodule] update swss submodule (#1415)

yxieca · lguohan · commit ce070219acc2 · 2018-02-26T21:49:08.000-08:00
diff --git a/src/sonic-swss b/src/sonic-swss
@@ -1 +1 @@
-Subproject commit 6dd08704236fc24ff008287fbd27d01e9d0eda4f
+Subproject commit 6e274fbcf208d7d66b3fe1449043bd2e01e43f9c
