Update git submodules

* Update docs/submodules/msb/discovery.git from branch 'master'
  to b9bf181a6ece4f03735e75c6af350690cef24787
  - Update jetty-http
    
    Issue-ID: MSB-328
    Change-Id: I5e36767707d2321fa179b3339c15a4b9202dd8e3
    Signed-off-by: Huabing Zhao <zhaohuabing@gmail.com>
    
1 file changed