Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "Add SUT page in GUI"
  - Add SUT page in GUI

    JIRA: YARDSTICK-1076

    We need to show SUT information in GUI.

    Change-Id: I885773894fc9f6aa5975b39383af1fdf1b88b8bb
    Signed-off-by: chenjiankun <chenjiankun1@huawei.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 32e60fb..320ddb5 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 32e60fb2c37573265111994d33c1a43ea64bf6f8
+Subproject commit 320ddb571c774a2cf17863225bb415bf6b2c65aa