Update git submodules

* Update docs/submodules/integration.git from branch 'elalto'
  to f2a6978280d3f96a24f464e33b168d49f695fa22
  - Update release note
    
    Correct system Warning
    Correct Doc8 errors
    Modify section level to avoid bad behavior in toctree
    
    Issue-ID: INT-1249
    
    Signed-off-by: Eric Debeau <eric.debeau@orange.com>
    Change-Id: I44c027ec9b8a14cad455bc981994f3c7dab48140
    (cherry picked from commit 2a75ad689a5024b38c53354973588d2f68da2596)
    
1 file changed