Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 529f7c363c20a21e99bc3655b7665a4febdfbfd7
  - Update SO staging image
    
    Change-Id: Id9debf510df11e069f95e34ad109676d8e191038
    Issue-ID: INT-1047
    Signed-off-by: Yang Xu <yang.xu3@huawei.com>
    
1 file changed