Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 80462c509ef9ce3241b4cdf3e7f8fe5f6ab74974
  - comments updated
    String constant added as per the guidance, commented out codes has been removed
    Issue-ID: SO-1490
    
    Change-Id: Ia7a531580eaafd80900200b1cf5122c1a8b9f511
    Signed-off-by: Subhosree Pan <subhosree.pan1@huawei.com>
    
1 file changed