Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 604f96f5154a475041efbfc7c9f4c428f210d030
  - Improve unit tests for EcompErrorConfiguration
    
    Issue-ID: SDC-2327
    Signed-off-by: Marcin Kowalski <m.kowalski3@partner.samsung.com>
    Change-Id: I8ddaa70b02eeda837e5f74cd105a3e803d8652e6
    
1 file changed