Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Euphrates cleaning: remove any reference to aaa vnf"
  - Euphrates cleaning: remove any reference to aaa vnf

    aaa vnf was created in Danube to illustrate the vnf abstraction
    as real implementations are now available and nobody really
    implements a real aaa test case, it is better to remove any reference
    to aaa vnf

    Note modification on the documentation will be done accordingly

    Change-Id: Iab6d96c955a6a7dc178588592382e42d68ec604c
    Signed-off-by: Morgan Richomme <morgan.richomme@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 9515e36..42562fa 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 9515e36a056ad7f16f39564ae2eeca955054997d
+Subproject commit 42562fa3393aa54d1780a428b439cedcd3590a7b