Update git submodules

* Update docs/submodules/joid from branch 'master'
  - make sure master charm in kubernetes resolved before we are
     testing

    Change-Id: I5da42ff08acfcdcf3049b5facd9dc2f9146a035e
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index 9d5b9c5..4b7bbc9 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit 9d5b9c59a7041490a7c15b797fcbeff9d4b48bb5
+Subproject commit 4b7bbc9613bf8cab6b918b5f97b1712d7a5226bf