Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Fix environment variables in Dockerfile

    After merging [1], there were some hardcoded values
    pointint to ~/repos/functest.

    [1] https://gerrit.opnfv.org/gerrit/#/c/36827/

    Change-Id: Icd912ca8ab6226cbdb0cc4f8b6f77572ea43ae06
    Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 7d4d0a5..e32f797 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 7d4d0a563a920320998a1cb975ddfbaaaec14053
+Subproject commit e32f797894cbc66a73976e50bcdb8e59f02eedc2