Updated git submodules

Project: integration master 2b7aef3e38d07551f9c5ca184f486cd5f574c209

Fix CSIT Robot ExtendedSelenium2 library issues

The latest versions of the robotframework-selenium2library
and robotframework-extendedselenium2library seem to be
incompatible.  This fixes the two versions to a known
good old version set.

Change-Id: Iec8aedc2c9757bbc8787be128eeda1cb31272219
Issue-ID: INT-379
Signed-off-by: Gary Wu <gary.i.wu@huawei.com>

diff --git a/docs/submodules/integration.git b/docs/submodules/integration.git
index 3a12c79..2b7aef3 160000 (submodule)
--- a/docs/submodules/integration.git
+++ b/docs/submodules/integration.git
@@ -1 +1 @@
-Subproject commit 3a12c790a0b743c2a50345515d6d505979a158a5
+Subproject commit 2b7aef3e38d07551f9c5ca184f486cd5f574c209