Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Publish Functest daily and gate jobs

    As opposed to the Releng ones, they are designed to be easily
    executed by endusers as well. They can be considered as a first step
    towards a full Functest CI/CD toolchain deployed via docker-compose.

    All components testcases are enabled here.

    They hugely leverage on templates to load the right yamls per branch
    and multijobs to run testcases in parallel. Many steps are proposed
    allowing running part of the chain.

    Executors have to be increased to allow running them (it was tested
    vs 10 and more).

    At first, all docker images are downloaded to avoid different
    versions between testcases.

    They will be improved in a second change to ensure that only one node
    is selected and to take all Functest env vars into account.

    Change-Id: I99c7b8ee5d0ddbb00102b3147739b5e8b5c65c23
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 69f0b2665b397e5128bf7a83541d3567c4834af3)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 47207b7..a55e2ae 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 47207b77f9c0649c3ec1292505258431657c507a
+Subproject commit a55e2ae22c6880ffa64bf3f93fec1aef1adaeed7