Finish receiver synchronously when broadcast can be skipped.

With the delivery group policies applied to more broadcasts,
there could be a lot of broadcasts in the SKIPPED state and
finishing each of these asynchronously could increase the
delivery latency which could be problematic for foreground
broadcasts.

Bug: 268639079
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: I3f052ba1c58be321a3d1376712b50b440c84c908

Change-Id: I5b3d848b9a5088b55f950ddc3065e6d85fac8d46