Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 79ad43bf4c95ce0ef5de38925e667ed44ea02b7e
  - Add Slice Service Activate Request
    
    Issue-ID: SO-2368
    
    Signed-off-by: zm330 <zhangminyj@chinamobile.com>
    Change-Id: Id9d0b295b115e3639ebdbcf5287ea240ceb9eca7
    
1 file changed