Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Refactor task results manipulation in rally"
  - Refactor task results manipulation in rally

    Use data provided by report generation since the output of task
    results is not available as valid JSON if task didn't finish
    gracefully.

    JIRA: FUNCTEST-966

    Change-Id: Ieb906bc209cc26055babd5f4e6b2bb556724f9a8
    Signed-off-by: Juha Kosonen <juha.kosonen@nokia.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index cb05317..267fb6d 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit cb05317bf0ab432ab2f64f5658b09110ac43af90
+Subproject commit 267fb6d355660423488a80f463656fc2b0052b06