Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 78be848fcf71bf970cf4de16e22a37e09edeaaa7
  - Added datatypes for 3rd Party Partners
    
    Issue-ID: SDC-2385
    Change-Id: Iedc5d5b9b30e7cccd3654a1b6e84514643b6d62f
    Signed-off-by: Atif Husain <atif.husain@team.telstra.com>
    
diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index c2a53cb..78be848 160000
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit c2a53cb447789e15e85663ae253ab2d90b972934
+Subproject commit 78be848fcf71bf970cf4de16e22a37e09edeaaa7