Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "utils: catch SyntaxError during import"
  - utils: catch SyntaxError during import

    bad modules can also throw SyntaxError besides ImportError

    Change-Id: I4fa912505753cba3c06f127105354572b7f5ddd8
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index b583d4b..96b4d98 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit b583d4bfe6bc49e0f3bf4beec6612390a1d4bd24
+Subproject commit 96b4d985bb8d83751e65a3ad5fa710e9eeddcb9b