Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to f7683e27b8570a2102f287ebc98117b9026c27a8
  - Merge "Add SO re-name the migration sql for version conflict"
  - Add SO re-name the migration sql for version conflict

    Rename the version from V6.1 to V6.3 for
    V6.1__AlterColumnActionCategoryControllerSelectionCategory.sql
    There is another script with same version in the att ecomp.
    Issue-ID: SO-2209
    Signed-off-by: Bonkur, Venkat (vb8416) <vb8416@att.com>
    Change-Id: Ia7e527419dfe149f8cbdd9d0748768f8b7bc9904