scripts: aosp-merger: Support per-project branches

* Also allow specifying an alternative merge file

Change-Id: Iddd526eabeb5ecc4112066d6a03c1acbab5d5a9b
1 file changed
tree: 162471ccb68c91e44a23d4abb0e2d44a5bf12e86
  1. aosp-merger/
  2. build-chromium/
  3. lineage-merger/
  4. repo/