Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Improve the pylint score of functest-core"
  - Improve the pylint score of functest-core

    It also modifies the file list to ensure the rating of ci modules.

    Change-Id: Ia1e414be5364cb3da3d54882db428024ed6bd99f
    Signed-off-by: Linda Wang <wangwulin@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index fc0d8c6..62d12c8 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit fc0d8c601ce627d5f7b8c5e3eef73bd01c6db7d4
+Subproject commit 62d12c838b7c008462b7c45731290c385ed98bff