Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 6cfebc0867b2f21a401f55734aba30eb245e3c70
  - Fix security issue in SecurityUtil

    - Specified mode and padding to address risky algorithm
    - Corrected unit test for different exception message
    - Moved tests to package

    Issue-ID: SDC-3105
    Signed-off-by: Neil Derraugh <neil.derraugh@yoppworks.com>
    Change-Id: I5773ab555a5468362c775cf99795df4eb8c52136

diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index 8a0f58a..6cfebc0 160000 (submodule)
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit 8a0f58a005175959f5b56c0840ee9980f0d68c01
+Subproject commit 6cfebc0867b2f21a401f55734aba30eb245e3c70