[SAI]: Update SAI submodule (sonic-net#209)

Shuotian Cheng · web-flow · commit b8bcfd0e5d63 · 2017-08-08T21:30:47.000-07:00
diff --git a/SAI b/SAI
@@ -1 +1 @@
-Subproject commit c1af4a3d9217cd198a40efad749311867a7b510a
+Subproject commit 40d7d66ce80fa03db397acd1ab614923a23340dd
