Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "modify old naming testcase_base to testcase"
  - modify old naming testcase_base to testcase

    testcase_base is the old naming, now testcase is adopted

    Change-Id: Ic937da1fba16060d8a2ff1e6f3d1301be1293cd3
    Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 0cc2edb..7af7f85 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 0cc2edbbd3e67353dbf7bf8d1774506aef0cd69f
+Subproject commit 7af7f85cc1d8cc0ef05ec839a70504f89d38f806