Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "remove apex lake tc007 from test suites"
  - remove apex lake tc007 from test suites

    fixes opnfv_os-nosdn-fdio-noha_daily.yaml failures due
    to missing testcase

    Change-Id: I5f050d72334da46b94de5fa3662047bf694f7e3e
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 5d4c69f..3d4fae5 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 5d4c69f41afd52246ff6e6199ccadf68986cd72d
+Subproject commit 3d4fae588078c559d35b888879a403c09ab80fb2