Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Release notes for Danube 2.0"
  - Release notes for Danube 2.0

    Change-Id: Ibe121dad771f0df36ffa15ec13d637b835cf09a8
    Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index aa3f9d4..2812b73 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit aa3f9d4677170b24b72c9c5c7c5987b5a4b64f0d
+Subproject commit 2812b73ba29d321753d0e7faf28d8b8475cc6de4