Update git submodules

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>