Update git submodules

* Update docs/submodules/openflowplugin from branch 'stable/carbon'
  to 6e11f06a0eeaef5009f6260284c499b8a783f693
  - must use full node-connector string when writing queue stats

    OPNFLWPLUG-995
    Similar to port statistics, when writing queue statistics into the
    operational datastore, make sure to use the full md-sal node-connector
    string. i.e. 'openflow:1:1' rather than '1'.

    Change-Id: If9ae252c762ac26830539722481bcf11b58199e9
    Signed-off-by: Evan Zeller <evanrzeller@gmail.com>

diff --git a/docs/submodules/openflowplugin b/docs/submodules/openflowplugin
index f9b5004ae06306ef1b85f148fca01a3cbd6e86c3..6e11f06a0eeaef5009f6260284c499b8a783f693 160000 (submodule)
--- a/docs/submodules/openflowplugin
+++ b/docs/submodules/openflowplugin
@@ -1 +1 @@
-Subproject commit f9b5004ae06306ef1b85f148fca01a3cbd6e86c3
+Subproject commit 6e11f06a0eeaef5009f6260284c499b8a783f693