Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "bugfix: remove pod_name in host and unify host parameter"
  - bugfix: remove pod_name in host and unify host parameter

    for none-ha test case, use host to be parameter
    for ha test case, use attack_host as parameter

    Change-Id: I053df00adab17814dd54584a1ae081548163dc68
    Signed-off-by: rexlee8776 <limingjiang@huawei.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 164d60c..0c0ba9b 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 164d60cedff53c520e4c36a37cb1a02bf873f7fb
+Subproject commit 0c0ba9bff5e54d02b924fe1bfe30c68190a24956