Update git submodules

* Update docs/submodules/functest from branch 'stable/euphrates'
  - Merge "Remove white space when listing testcases" into stable/euphrates
  - Remove white space when listing testcases

    Change-Id: I2f3c7a9301a6b2dcb03a90175be23223f6a6229a
    Signed-off-by: Linda Wang <wangwulin@huawei.com>
    (cherry picked from commit e4ad79cabc3292a1cb0d8642f0c9eddbbc2befd1)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 12b13d1..77b1231 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 12b13d1816eea129ff19379a6d2b8ba03e176840
+Subproject commit 77b1231c610a659ca6e782c9297b4a0d918eb97f