Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "[docs] Fix links to remove references to submodules"
  - [docs] Fix links to remove references to submodules
    
    All references to submodules must be removed for docs to
    work going forward.
    
    Can be tested once your project has a local tox file
    
    Change-Id: Id74581cc584f70ae0b31e31c9dd91593c7be6615
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
-Subproject 8fad21bad150b0c80430af6e40b55f627b4c72e
+Subproject 472eede691468c8b78ab2e16fef43dc3e7e8dae