Update git submodules

* Update docs/submodules/joid from branch 'master'
  - modified to use gnocchi charm

    Change-Id: I419660ffce7840a372260e75f37631c3c879e19a
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index 435e80c..cc9e540 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit 435e80c712e8a4cd971e6f44ee8947467997083d
+Subproject commit cc9e54029b92c7e3155b2b302ea0fbd22c58d3a8