Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Convert files to Unix format

    It fixes "[cloudify_ims] Support Cloudify 4.0" [1]

    [1] https://gerrit.opnfv.org/gerrit/#/c/36315/

    Change-Id: I70d04e781d7034f37783764ae5e8b399d62bb793
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ec195ca..b4cacd1 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ec195ca9677022725b28d7e363ae47bebc512680
+Subproject commit b4cacd1ca87b7cbe7c166a543e8f448b723c837d