Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Blacklist CeilometerTraits tests

    Requires a deprecated Ceilometer API which was removed in ocata. Panko
    provides the API but is not yet supported by OPNFV installers.

    Change-Id: I85ab97099b8adfa1d15fe4195bc5703f2f4e83b8
    Signed-off-by: Juha Kosonen <juha.kosonen@nokia.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 9f0b067..c4a413e 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 9f0b0675da1b8f4e6edb277492bf6b2f747721b8
+Subproject commit c4a413e8d4ae0516f31697e966478b78ce7dc0ff