Update azure-c-shared-utility submodule reference

Pierre Cauchois · Pierre Cauchois · commit bfb5d5c75bfd · 2016-08-12T08:47:39.000-07:00
diff --git a/azure-c-shared-utility b/azure-c-shared-utility
@@ -1 +1 @@
-Subproject commit 26e6f1b82185dc9e4e63c723fd5df135bc4f80b2
+Subproject commit 2d6eadd449fefde163ab6cb550a382212e3a00c4
