Report data from aaudio mmap path to audio flinger.

Report data from aaudio mmap path to audio flinger for sound dose
computation. A shared memory is allocated for read and write counter.
The client will shared the write counter with the aaudio service. The
command thread will wake up every 5 burst time to report the data to
audio flinger.

Test: atest AAudioTests
Test: test_marshalling
Test: dump wav file in audio flinger and play
Bug: 264254430
Change-Id: Ib732442c5afc9169fe891212cf77b458c41a87f1