Update git submodules

* Update docs/submodules/moon from branch 'master'
  - Add __init__.py in test directory because Jenkins needs it.

    Change-Id: Iad2f076680d6be04e4ec70c23b1a5a762480f720

diff --git a/docs/submodules/moon b/docs/submodules/moon
index 8c4503a..0da820e 160000 (submodule)
--- a/docs/submodules/moon
+++ b/docs/submodules/moon
@@ -1 +1 @@
-Subproject commit 8c4503a8d6a5cfed77b9be776eebe92c25379312
+Subproject commit 0da820e8d8ff75ff9e12b80501cc38aa1f3507a8