swss submodule update. Remove the global lock from swss (#1624)

pavel-shirshov · web-flow · commit cde9a60c41c2 · 2018-04-19T14:53:37.000-07:00
diff --git a/src/sonic-swss b/src/sonic-swss
@@ -1 +1 @@
-Subproject commit e849afeeef0ba0d09facfe61a4b0912684021ac6
+Subproject commit 39523aa95915b1c78b559b5ec3917fe6fe837fad
