Update git submodules

* Update tools/repohooks from branch 'master'
  to 54e517c145f4f548e78649523505b7249f92c54d
  - hooks: handle str & unicode types in Python 2
    Make sure we treat unicode strings as strings under Python 2.
    When we fixed rh.utils.run_command to return string (unicode)
    decoded output instead of bytes, this code path broke.
    Bug: 139175041
    Test: repo upload works in frameworks/base again
    Change-Id: Ifb0e5afc7bd6d724717beee25db81b4903d17bad
1 file changed