Update git submodules

Update git submodules

* Update docs/submodules/ccsdk/features.git from branch 'elalto'
  to 46c4ccd71453cd30760cd79abb9b7ee1a49d5a13
  - Roll to next snapshot

    Roll to next snapshot version

    Change-Id: Id7573d0d13f526b73a51df7a18d4131c384eba00
    Issue-ID: CCSDK-1701
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>
  - Release version 0.6.2

    Release version 0.6.2

    Change-Id: I5daf737311e5f48d8eb7e9df6bc89a1528d2fd9a
    Issue-ID: CCSDK-1701
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>
  - Specify sli scope as provided

    Specify scope of sli dependency as provided to avoid issue in
    generated feature.xml

    Change-Id: I02f6d9b3499a8f13c7bbfe40252f911b40f99b13
    Issue-ID: CCSDK-1445
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>
  - Roll versions for El Alto

    Roll to next El Alto snapshot

    Change-Id: Iaca47d949626bdc8075d97089372d997c8b249e1
    Issue-ID: CCSDK-1701
    Signed-off-by: Timoney, Dan (dt5972) <dtimoney@att.com>