Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Add image extra properties back in vping_base

    Image extra properties are missing for ARM
    Set image_url for ARM
    JIRA: ARMBAND-383

    Change-Id: I0e2730c3f22214ad61d72424ea76173f1783d0ca
    Signed-off-by: Delia Popescu <delia.popescu@enea.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ac8e3d4..1aaeab7 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ac8e3d4d9f7fe99021f41ee9c86370e7d9866d65
+Subproject commit 1aaeab75130345ae9198de23d013f9840044c8b5