Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "export detailed logs for each project"
  - export detailed logs for each project

    1. mapping .reports mapped into docker
    2. export ./reports/*

    JIRA: RELENG-279

    Change-Id: I4eef3b75589a9d8f36801931d1fd31b7e247c07a
    Signed-off-by: Julien <zhang.jun3g@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 86fa506..7e42754 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 86fa506d9e6b37df0b79ac72fa2e78e1579430a2
+Subproject commit 7e427548729365e781ca539b4790b2c96de86f31