Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "xci: Enable yardstick"
  - xci: Enable yardstick

    Change-Id: Id48d1dcb6c1998f7f6d0f71cb9380ed7fcf7b320
    Signed-off-by: Fatih Degirmenci <fdegir@gmail.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 3608656..fde219f 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 3608656e9155d07dabce5a10277245608908ee45
+Subproject commit fde219fb44ab6303cd59ff3075574b1c3e1ba337