Update git submodules

* Update docs/submodules/sdc.git from branch 'elalto'
  to dcf44263ce3e63be721ee996c8b3de3c84b893e6
  - Update Release Note
    
    Update Release note for El-Alto Maintenance release
    
    Issue-ID: SDC-3199
    Signed-off-by: ChrisC <christophe.closset@intl.att.com>
    Change-Id: Iefa7e70adac2a4bcb3f8f9399bf60826869b8469
    Signed-off-by: ChrisC <christophe.closset@intl.att.com>
    
1 file changed