Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Remove obsolete repos in functest/ci/config_functest.yaml"
  - Remove obsolete repos in functest/ci/config_functest.yaml

    It completes "Use directly OpenStack project packages" [1].
    kingbird becomes a dependency.

    [1] https://gerrit.opnfv.org/gerrit/#/c/36125/

    Change-Id: I2cb9e3a2146a2b2bbae89dde9917c5ace70048a6
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index c052d52..bcb7755 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit c052d52d30bb4aad229fef04560a3f71dff0cab5
+Subproject commit bcb7755cc73cd17fe0d8736332da674498209e29