Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 769b6618920135c2671ff952793cc16b086b8a53
  - Merge "Define constant in place of literals"
  - Define constant in place of literals
    
    Constants are declared and used in place of literals
    
    Issue-ID: SO-1490
    
    Change-Id: I674b250fa3e141deea5c4b6c43d6fa94733f0b67
    Signed-off-by: h00397475 <hena.choudhury@huawei.com>
    
1 file changed