Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "Create opnfv_k8-ovn-lb-noha_daily.yaml test suite file"
  - Create opnfv_k8-ovn-lb-noha_daily.yaml test suite file

    JIRA: RDSTICK-811

    We need to create opnfv_k8-ovn-lb-noha_daily.yaml so that we
    can run kubernetes test in k8-ovn-lb-noha scenario.

    Change-Id: I9c18b6d68c96ef917f3b65e494e3c2d9e1beefdd
    Signed-off-by: chenjiankun <chenjiankun1@huawei.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index de726cc..1b85496 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit de726ccdc524f7cd61d3dda998bb3826c6af721c
+Subproject commit 1b8549620b0d998e6492a16e9e1bcf2985621988