manifest: Update repohooks to track "master"

Bug: 183069134
Test: Check `repo upload` works

Change-Id: I4279433ff891486629b6604ca36b636d2ae4c601
1 file changed
tree: 59a7bbe4c80c7940327e68e722db749386320af4
  1. default.xml
  2. GLOBAL-PREUPLOAD.cfg