Invalidate all other clients when bit-perfect playback becomes active.

When bit-perfect playback becomes active, the framework should
ensure there is only one active stream so that the HAL knows which
configuration to open the sink. In that case, when bit-perfect
playback become active, invalidate all clients that will then be
routed to bit-perfect sink.

Bug: 287088377
Test: atest audiopolicy_tests
Change-Id: Iadf207d273e2301f5976b48dbd2f08f859473226