[submodules]: update sonic-utilities (#1571)

lguohan · web-flow · commit 4d3f44bc3280 · 2018-04-07T15:50:37.000-07:00
Signed-off-by: Guohan Lu &lt;gulv@microsoft.com&gt;
diff --git a/src/sonic-utilities b/src/sonic-utilities
@@ -1 +1 @@
-Subproject commit 68c3fbf79738253ca5b1c8f225152a1cab55c5a1
+Subproject commit 3f2d7bb4beaf3987db0c3e6fb57ae7ba51390a16
