Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Fine-tuning the juju-epc codebase for better error-handling

    The changes are mostly basic/cosmetic in nature.
     - Add some additional info in loggers.
     - Remove timeout from few commands(such as juju deploy)
     - Add exception logging for few commands(such as juju bootstrap).
     - Change rsync to cp for feature file transfer within ABot.

    Change-Id: Ibeaae17f1c25d04b7830ed42719b70e6c99228cf
    Signed-off-by: soumaya <soumaya.nayek@rebaca.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 41f6a5f..a69c4be 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 41f6a5fbdb016c0cf724009776bafce3f89a39b7
+Subproject commit a69c4be1d1b4c6cc5021a14e63c9f73d28490942