[automerge] Add excludedPackages parameter to broadcast 2p: c0ce69bc8d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18298311

Bug: 231635380
Bug: 210118427
Change-Id: I247933faa1b8cffa9756516f8d4853b3bce88653
Merged-In: I9a331f71c7052b294d4eada0f0f658dba989d881