Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 52183bb7fed88d4dddaaa31e1114b8f77d7a5cc8
  - Add policy and data types to SDC
    
    - Define policy and data types for control loop
    - Onboard them as normative types in SDC
    
    Change-Id: I5188229ba91d5ddeabd43c4ac0b869abba7c42a0
    Issue-ID: SDC-2203
    Signed-off-by: Marco Platania <platania@research.att.com>
    
1 file changed