Update git submodules

* Update docs/submodules/joid from branch 'master'
  - Adding the storage space support in case it is defined.

    Change-Id: Ic394674dd026f834dcee0db566dff7c654a2dba3
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index e4e0ab5..7d911eb 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit e4e0ab5bdd9a0be1398fa18bcd67dad8e39919c3
+Subproject commit 7d911eb5fcf4066a11ff34761d44a22c4fc7d877