Update git submodules

* Update docs/submodules/optf/has.git from branch 'master'
  to 5247449a145fe4737fb7560f612f2d53e974da78
  - Update committer changes
    
    Change-Id: Iec9005667a3ee98ee451a0ed49d1a3a4728b3314
    Issue-ID: OPTFRA-773
    Signed-off-by: Shankar Narayanan <snarayanan@research.att.com>
    
1 file changed