Update git submodules

* Update docs/submodules/clover from branch 'stable/fraser'
  - Update from requirements

    Pipfile.lock ensures a consistent environment

    Change-Id: Id2e544c77a67ce8fa010fba9c357735496f62a26
    Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>
    (cherry picked from commit 446feb887795ac6250c630f8e1e751f2ca7df596)

diff --git a/docs/submodules/clover b/docs/submodules/clover
index 6d7e971..0898217 160000 (submodule)
--- a/docs/submodules/clover
+++ b/docs/submodules/clover
@@ -1 +1 @@
-Subproject commit 6d7e971c0c44d5e24af850fb71bc7a38acebe9a0
+Subproject commit 08982178d1f9c0c17b24488a7b56049a5ae335b8