Update git submodules

Update git submodules

* Update docs/submodules/ccsdk/cds.git from branch 'master'
  to ff853257afc3ba42059fad2453f51674a61248d2
  - Merge "Resource resolution fix + improvement."
  - Resource resolution fix + improvement.

    Fix: Fix for list typed data resolution retrieved from database table.
    Improvement: exposing occurrence property to template engine;
    useful, when doing multi-occurrence template generation,
    to index list data resolved previously.

    Issue-ID: CCSDK-1693

    Signed-off-by: Serge Simard <serge@agilitae.com>
    Change-Id: I3a601ebabfcd42c439a515d3fe44ff4fc00b2314
    Signed-off-by: Serge Simard <serge@agilitae.com>