Update git submodules

* Update docs/submodules/functest from branch 'master'
  - vEPC tests with juju as an VNF manager

    juju_epc testcase validate EPC setup with the help of ABoT which
    acting as test executor. Functest-abot-epc-bundle deploys OAI charms
    alongwith mysql and ABoT. JUJU is acting as a VNF manager.

    Change-Id: I45d7b37f21f6b8c7049ab2bf42a4678e30b67a72
    Signed-off-by: soumaya <soumaya.nayek@rebaca.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 41a81e7..00315cb 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 41a81e7f5ca5d3733e6e5655f5ece7859ce9f49b
+Subproject commit 00315cbac45bdffe0cfd3174a4b0871ccb610b97