Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "bugfix: malfunction of scenario equal check"
  - bugfix: malfunction of scenario equal check

    1. bugfix equal check with[] will return list[false, true],
       and always True in next step check
    2. in assert_res() leverage '==' will never assert even if
       they are not equal

    Change-Id: I683e3489d45b98b508f8ab8b6ef268ca9a1ebd5f
    Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index c839d60..8224ffb 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit c839d60298dcc73233a16a36ffc00c1bcbcee6b4
+Subproject commit 8224ffb3b3dfc357952424e1feef34d4bd4c32bc