Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "OpenStack deployment using kolla"
  - OpenStack deployment using kolla

    OpenStack deployment using Kolla installer for all-in-one mode and
    multinode inside VMs which are already created. Two types of OpenStack
    nodes are supported as input in sample files, like
    infra_deploy_two.yaml.sample: controller and compute.

    JIRA: YARDSTICK-1078

    Change-Id: I51616a7a17ac565a01ec6da57b589290237d18ee
    Signed-off-by: Stepan Andrushko <stepanx.andrushko@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 0aae335..fd54ab5 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 0aae33539c4790a3fd1ffeac1fd266d8d00ad70d
+Subproject commit fd54ab5c79b16cdc1765517057b8eb0c988f60c8