Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "Auto Generated INFO.yaml file"
  - Auto Generated INFO.yaml file

    INFO.yaml meant to be machine readable.
    This file was auto generated from an ldap lookup
    and your projects INFO file.

    Meeting times are not currently filled out.
    please ammend this patchset to complete

    Going forward comitter promotions should be done
    against this file.

    PTLs:
    Must be merged for you to gain delete access on
    testresults.opnfv.org

    If project_lead: is missing (my script could not parse)
    please amend with same from commiters section eg:

    project_lead: &opnfv_$project_ptl
        name: 'Lead Name'
        email: 'lead email'
        id: 'lead lfid'
        company: 'lead company'

    Change-Id: I241279fba0d9acf69d38242a30541ddb90d22d67
    Signed-off-by: agardner <agardner@linuxfoundation.org>
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 02854cd..6bb9744 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 02854cdde659f67775f1c2f37932fb4e7689840a
+Subproject commit 6bb97446dd3bbdb389503a002827bba274681dd5