Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to 56bef7eb388a5783ec27e7d641ea3e0f64e7abbd
  - Merge "Logging improvements"
  - Logging improvements
    
    Change-Id: Ic0ad656b9bb041f65a37103680e3599c8ca1f98e
    Issue-ID: DMAAP-1203
    Signed-off-by: egernug <gerard.nugent@est.tech>
    
1 file changed