Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Rename zte-pod4 to zte-virtual5"
  - Rename zte-pod4 to zte-virtual5

    JIRA: QTIP-280

    Change-Id: Ie588c3e38af82fe9b2de8bb01549a1c9249d54ff
    Signed-off-by: zhihui wu <wu.zhihui1@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index c10f77f..115206f 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit c10f77fd7b09d61e892e50a5f10d5047507efce5
+Subproject commit 115206f0a1a029f36e41610242648168c521d095