Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Allow setting two image extra properties per testcase

    It conforms with the flavor extra specs model [1].

    [1] https://gerrit.opnfv.org/gerrit/#/c/60713/

    Change-Id: I1555a313aaf56ae47f9ad2a4529eb8b94e636c00
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 8d3eb364d84f90b19f9e7234d01add8764843081)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 49d9a8c..380ef4c 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 49d9a8cbf7b8620aa8123d5f4963c65e7e3aa6e3
+Subproject commit 380ef4cdda2eb4de274b500862c5789887aec4f1