Update git submodules

* Update docs/submodules/releng from branch 'master'
  - bugfix: trend graph not show in fuel x86 and aarch64

    The trend tool will read installer field in scenario_history.txt
    But now this field is fuel not fuel@x86 or fuel@aarch64.
    So I change fuel -> fuel@x86 & fuel@aarch64.

    Change-Id: I8e97e57febd559f65be559b16bceee5cf8268926
    Signed-off-by: chenjiankun <chenjiankun1@huawei.com>

diff --git a/docs/submodules/releng b/docs/submodules/releng
index 5ec7838..e086052 160000 (submodule)
--- a/docs/submodules/releng
+++ b/docs/submodules/releng
@@ -1 +1 @@
-Subproject commit 5ec7838fe8e98e2333ebe4330f2e5cbe1e0ec482
+Subproject commit e086052c0550e65c5049b89f75d85eed65ed9e5f