Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Remove odl_netvirt testcase

    Its dendencies have not been met since Danube [1].

    [1] https://build.opnfv.org/ci/job/apex-os-odl_l3-nofeature-noha-baremetal-danube/

    Change-Id: I1a5bb4acd9e7e14dbf519132847521b5138f4cd6
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>
    (cherry picked from commit 13e4c5838b732bf9fd246cd4f97cb9b4e2b8e0b9)

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 9680a67..064b5b7 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 9680a67e0758308350de58e4c6ee64235de0ad39
+Subproject commit 064b5b77d744ea0e43cc4a3f0fadb739afa45850