Update git submodules

* Update docs/submodules/joid from branch 'stable/danube'
  - modified to accomodate new naming convention for data api.

    Change-Id: I236ad119218773ac380522c7c90097dc3455ef34
    Signed-off-by: Narinder Gupta <narinder.gupta@canonical.com>

diff --git a/docs/submodules/joid b/docs/submodules/joid
index c0b9a08..dcb7c4a 160000 (submodule)
--- a/docs/submodules/joid
+++ b/docs/submodules/joid
@@ -1 +1 @@
-Subproject commit c0b9a08d0d0f3fca9082b6058ae0482d1363af81
+Subproject commit dcb7c4a04bbe73bcd7ce7b373cf7e2d3bb6c3055