Update git submodules

Update git submodules

* Update docs/submodules/ccsdk/cds.git from branch 'elalto'
  to ce978b37b168068aa32ffcc64bddd53d3f3c9c74
  - Merge "Golden config-assign fails to resolve golden-vf-module-type" into elalto
  - Merge "Release version 0.6.2" into elalto
  - Golden config-assign fails to resolve golden-vf-module-type

    Issue-ID: CCSDK-1726

    Signed-off-by: Samuli Silvius <s.silvius@partner.samsung.com>
    Change-Id: I6cc09f9cf5a734b64dba2883656dbcdb03cf752d

  - Fix spring fox swagger snapshot version.

    Change-Id: I62ce444d77fa0aa8d6d6adb3ceca0cc83040bbe9
    Issue-ID: CCSDK-1724
    Signed-off-by: Brinda Santh <brindasanth@in.ibm.com>
  - Release version 0.6.2

    Release version 0.6.2

    Change-Id: I7c8bb6f4fc0491b644282702ec9d7dc9dfcadc0c
    Issue-ID: CCSDK-1701
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>
  - Roll versions for El Alto

    Roll to next El Alto snapshot

    Change-Id: I4e2016ab8711a74f781bd1421e35e289c716a612
    Issue-ID: CCSDK-1701
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>