Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Print the real testcase duration"
  - Print the real testcase duration

    TestCase offers a new public method to calculate and print the duration.
    It also adds the related unit tests and adapts run_tests.py.

    Change-Id: Ib6a7e637dafacb9027146199aeb033c2dcb986c6
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 6e4d097..25e6056 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 6e4d097a8881fa0cfcc2c192639eb0f17ce025a2
+Subproject commit 25e6056936b358d7556865deb8f3e86f63248efe