Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 25b55fca42a42f242031fac0ff64a3c78a3344d6
  - Added new groovy for creating 5G slice NSSI.
    
    Added new groovy for creating 5G slice NSSI.
    
    Issue-ID: SO-2368
    
    Signed-off-by: Isaac Manuel Raj <isaac.manuelraj@huawei.com>
    Change-Id: I345a6ef1ecfb22a67c9eefe83bc7ed19a0160fc8
    
1 file changed