Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to 223cdf25ba1f04634d8cc31ccceb7a449395a01c
  - Merge "Bump chart version"
  - Bump chart version
    
    Use 6.0.0 in preparation for Frankfurt release
    
    Issue-ID: OOM-2320
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>
    Change-Id: I8ad82dfdf48b56c38c0e85d640b18cc13c8d9e67
    
1 file changed