Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 746962d1b9e1aa7399436151fbb35c4efb0347f2
  - Merge "Update encoding library used"
  - Update encoding library used
    
    Update encoding library used
    
    Issue-ID: SO-2830
    Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
    Change-Id: Ifc5099f10c15fc6ef8bac367211320d61c20ca43
    
1 file changed