Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Define one logger per key module"
  - Define one logger per key module

    Snaps is printing lots of error messages which makes user confused.
    It will decrease the size of functest.log.

    Change-Id: I2c7d8ec968350563fbfbd62dcc2fc39b13b39a78
    Signed-off-by: Cédric Ollivier <ollivier.cedric@gmail.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 8b2f524..3f336ef 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 8b2f524f0f17f06bf1de02e0165230bad218132b
+Subproject commit 3f336efd9daf442b5c13954a6df830b09228d576