Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 3c3c41f8387306d4026465998aa230f1802f01ff
  - Some unit tests for catalog-be

    This is the last part of tests for info-models so at least this
    package should be quite nice covered by test since now.
    Some refactor made if needed.

    Change-Id: I78303ae8c5976b4a2c97422517a6df0cbae88e26
    Issue-ID: SDC-2220
    Signed-off-by: Tomasz Golabek <tomasz.golabek@nokia.com>

diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index b7f4a04..3c3c41f 160000 (submodule)
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit b7f4a0480943cc390d4146b6e8e9a7afb2a93cea
+Subproject commit 3c3c41f8387306d4026465998aa230f1802f01ff