Update git submodules

* Update docs/submodules/functest from branch 'stable/fraser'
  - Revert "Temporarily disable HOT including OS::Nova::FloatingIPAssociation"

    This reverts commit 95dcfcad2edd90ccde2b40281dab7464f6555237.

    Change-Id: I969fb6b4b4808b98af01a5820f029e345daa3f10
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index 7cbc023..ab94fcb 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit 7cbc023312c4333313adbba5e7a4d1cbd48621a3
+Subproject commit ab94fcbbbdf37c13c6dc5d9a02e6ddff64943983