Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to c76dadc92ea1a0f736e5a0f3f7090ec65589764c
  - Bump helm/kubectl versions to match OOM
    
    Bump helm to 2.12.5 and kubectl to 1.13.5.
    
    Change-Id: I5f6fe2b814dc55bf42e6807c2e6f17ae6319f064
    Issue-ID: OOM-1598
    Signed-off-by: Gary Wu <gary.i.wu@huawei.com>
    
1 file changed