Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to b6cc3faee96f0f286c5ed3c6363ef5cb4f5354be
  - Merge "Drop support for postgres-legacy common chart"
  - Drop support for postgres-legacy common chart
    
    There is no need to maintain two postgres charts if all components can
    work with the newest version so let's remove the legacy one.
    
    Issue-ID: OOM-2310
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I8b399902e37fdec7e55552e7972daaf1c0c74cfe
    
1 file changed