Update git submodules

* Update docs/submodules/releng from branch 'master'
  - bugfix: wrong usage of '!include-raw'

    Change-Id: Ibbc1363bf5260301b33afad84244aa1d7af4ffce
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 0e0e0d4..af9396b 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 0e0e0d4cb71fb27b1789a2bef2d3c4ff313e67ff
+Subproject commit af9396beb5d068cd3b2a1a74c97287b8f0760644