Update git submodules

* Update docs/submodules/joid from branch 'master'
  - correct kube-control relationship

    Change-Id: I8acd555fb138b3a00f9014bbcacf226d003c0056
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index ea05688..af481b1 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit ea05688cc33b2a69e885797795f4997584af744b
+Subproject commit af481b1d002cba3e31b0fce082afb5fe85c11666