Update git submodules

Update git submodules

* Update docs/submodules/vswitchperf from branch 'master'
  - report: Update paths after doc reorganization

    Directory with report files was moved to different
    location. Thus CI build script must be updated too.

    Change-Id: Id5b4c8b2740c01c821c25f8bfdaeb25352410e76
    Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
    Reviewed-by: Al Morton <acmorton@att.com>
    Reviewed-by: Christian Trautman <ctrautma@redhat.com>
    Reviewed-by: Sridhar Rao <sridhar.rao@spirent.com>
    Reviewed-by: Trevor Cooper <trevor.cooper@intel.com>