Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 8026d0848025720a77cc219be26415aa94f10b75
  - catalog-be code coverage increase
    
    Increase test code coverage in ElementServletTest
    
    Change-Id: I65d08d901f30c218e60b5630132d9eb8b4a90a9a
    Issue-ID: SDC-2326
    Signed-off-by: Piotr Darosz <piotr.darosz@nokia.com>
    
1 file changed