Update git submodules

* Update docs/submodules/yardstick from branch 'stable/fraser'
  - Merge "Sample VNF version need to be updated to Fraser" into stable/fraser
  - Sample VNF version need to be updated to Fraser

    JIRA: YARDSTICK-1289

    Change-Id: Ib150fafdfcc7a7aa09e4ed9c683fc3013676dac4
    Signed-off-by: Rodolfo Alonso Hernandez <rodolfo.alonso.hernandez@intel.com>
    (cherry-picked from commit 41777f75f551e6c448d21c9cf29d4e2967268f98)

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 1eab837..410fdb1 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 1eab837ca1723331d57316c184e6c86c3e94fd34
+Subproject commit 410fdb1fdbe2f51ff3939eccfd068920f597fe4e