Update git submodules

* Update docs/submodules/yardstick from branch 'master'
  - Merge "cli: typo, s/dispath/dispatch/g"
  - cli: typo, s/dispath/dispatch/g

    Change-Id: I3df6bc606f2ac78baf611aee22b9247f6f9d5136
    Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/docs/submodules/yardstick b/docs/submodules/yardstick
index 1857c4f..fb57af2 160000 (submodule)
--- a/docs/submodules/yardstick
+++ b/docs/submodules/yardstick
@@ -1 +1 @@
-Subproject commit 1857c4f37c9d371ddd48eb4d97a379c7c81c18e7
+Subproject commit fb57af27e97bbd27e5eeeeddc766518e3c700f3c