Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Put vnf_test pass if more than 80% of vnf test result are OK"
  - Put vnf_test pass if more than 80% of vnf test result are OK

    Change-Id: I1042176c587ef2bf1197c724cb5b1b6d67ffba3d
    Signed-off-by: boucherv <valentin.boucher@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ff6bd8a..63cd8a0 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ff6bd8a85399566f888fab717a522b1d579e8e32
+Subproject commit 63cd8a0bdb80c5d2c885e5205612dcd4bb956981