[auto] Update caffe2 to follow pull request 1608

onnxbot · onnxbot · commit 1308785e409f · 2018-01-31T05:24:06.000Z
diff --git a/third_party/caffe2 b/third_party/caffe2
@@ -1 +1 @@
-Subproject commit 723488cd17552913e4ed604bb24653d101e396f3
+Subproject commit 8844b367fc658d7d488b56517206ea6a349d3b0d
