Avoid priority inversion while replacing existing broadcasts.

Bug: 304224316
Test: atest services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueTest.java
Test: atest services/tests/mockingservicestests/src/com/android/server/am/BroadcastQueueModernImplTest.java
Change-Id: Ia1e01625dd2f805a3cc04cc0818f1413241dedf6
2 files changed