Update git submodules

Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 16fe29ac226610f79c8da1f691437ec7fe6e79c4
  - Improvement sdc-BE-init python scripts

    - Implemented retries when request fail
    - Moved configuration variables to the Properties file
    - Extended sdcBeProxy
    - Implemented script to run import/update (should fix deployment glitch)
    - Updated the import_Normatives recipes to use new script

    Issue-ID: SDC-2784
    Signed-off-by: Krystian Kedron <k.kedron@partner.samsung.com>
    Change-Id: I83fab898783ad8d3b3d532af43d75bc54d033c33

  - Refactoring the check backend, create consumers

    Continue refactoring:
    - added script for healthCheck, create new consumers
    - also update chef recipes to use new script

    Issue-ID: SDC-2784
    Signed-off-by: Krystian Kedron <k.kedron@partner.samsung.com>
    Change-Id: I158d816362f91f74b217fe85112cf7c14da8f1ec