Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Update to Xtesting 0.35

    Change-Id: I2a38fca608d866ed643f5d021cb85488f35c79f1
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 5fee9f2..98c8c01 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 5fee9f23acc8c227a92f93ca5329af614cb15054
+Subproject commit 98c8c01e5c59d638ec5bc5e003d87979ce5e7886