Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Move few local ODL SFC confs to global functest confs"
  - Move few local ODL SFC confs to global functest confs

       - Currently ODL SFC maitains image url, name, format in its local config.yaml
       - This makes it complicated to override some of the params for other architecture
       - like aarch64. This should help overriding some params during functest env prepare
       - based on arch

    Change-Id: I81a62566634e0bd87a53f5d0431492468a5f478c
    Signed-off-by: Vijayendra Radhakrishna <vradhakrishna@mvista.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 167b2c8..a250692 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 167b2c84d1d9bede32c17354139ac91e86d85d7d
+Subproject commit a2506925351537ef8cdbf8c161fc9c13df098c90