Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "Cleanup of redundant files from Prox directory"
  - Cleanup of redundant files from Prox directory

    JIRA: YARDSTICK-965

    Removed the redundant files and directory from
    Prox test folder.

    Change-Id: I6167f0a4ccdd581153dad3ec9f5eaaf2619aacbd
    Signed-off-by: Abhijit Sinha <abhijit.sinha@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 7602ac5..c10c3a7 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 7602ac57877300e2a7fbfc86f5688faa0e2fe4f5
+Subproject commit c10c3a740626078f1e3212beea479ca90eca869a