Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Allocate OperatorCloud instead of OpenStackCloud

    Else it fails for Rally which lists computes [1].
    Former Shade releases split Openstack operations into 2 classes.

    [1] https://build.opnfv.org/ci/view/functest/job/functest-apex-baremetal-daily-fraser/269/console

    Change-Id: Icdf01c540ff62d7e7ef609929e806334823d2969
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ca46e50..5a7ebae 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ca46e50190055c9752847d89d044e9fc6c307e81
+Subproject commit 5a7ebaefd7e9d0caadf7e62d08041f8851a66a75