Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 52c6fb010eee08dee5f09f4f57823d49f6471646
  - Properties are missing in TOSCA fix
    
    Change-Id: Iacceb798cb24408e232b9b59c751b0e984871728
    Issue-ID: SDC-2283
    Signed-off-by: Sonsino, Ofir (os0695) <os0695@intl.att.com>
    (cherry picked from commit 08f1f67956928d52427d101607f2e11d578d4b82)
    
1 file changed