Update git submodules

* Update docs/submodules/sdc/sdc-tosca.git from branch 'master'
  to 9ea78f2e3ac764a0a313b356764283277bcf7023
  - Bump version to 1.6.3
    
    Issue-ID: SDC-2586
    Signed-off-by: Shabanov, Marina (ms656r) <ms656r@intl.att.com>
    Change-Id: Ia1040ab93bf883a13e4614da5ac4b5d692235ec7
    
1 file changed