Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to eceef88af7a5e13a7840059004116e8b6cbf35ac
  - Updating etsi-sol003-lcm-api module
    
    Change-Id: If9711155d87d3f09e291b8b18e004ccff875e11e
    Issue-ID: SO-2771
    Signed-off-by: waqas.ikram <waqas.ikram@est.tech>
    
1 file changed