Prioritize core uids for ACTION_SHUTDOWN broadcast.

This will avoid going back and forth across processes
for delivering the broadcast (which will delay it) and
avoid having the receivers in the core uids blocked by
other apps.

Bug: 313680784
Test: boot and shutdown works
Change-Id: I4b3c848b7baee56974ec19d466b9c567ee8c04d8
1 file changed