Extend ROLLBACK_COMMITTED broadcast for the multi-user case

For the case where there are multiple users on the device,
the ROLLBACK_COMMITTED broadcast should be sent to all
users for which the package is being rolled back.

Test: atest RollbackTest
Test: atest SecondaryUserRollbackTest
Bug: 139060321
Change-Id: I8e20da321f52ebf9e6d584a8c59d2a3106a32212