Update git submodules

* Update docs/submodules/joid from branch 'master'
  - modified to accomodate latest intel pod changes from pod5 to pod21

    Change-Id: Ic9edfd4c355317a6873987bb63659bb9611aa285
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index 556619d..b6cc7d4 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit 556619df6b2e61f3aefcfdf837f2a99d18b3b7d9
+Subproject commit b6cc7d415446524aa86b26410eb09fb1ee52896f