Update git submodules

* Update docs/submodules/optf/has.git from branch 'master'
  to 87ab2e790f5b6108adf089372cf59072447805d7
  - Merge "Adding Pyunit to increase HAS code coverage"
  - Adding Pyunit to increase HAS code coverage
    
    Adding Pyunit to increase HAS code coverage
    
    Issue-ID: OPTFRA-302
    Change-Id: I83eda99276ef960c88e0d51f59c04ab2104fcf19
    Signed-off-by: Sudarshan Kumar <sudars19@in.ibm.com>
    
1 file changed