Uprev to AVDTP 1.3 and Implement AVDTP delay reports

Implement receiving the delay report message which requires AVDTP 1.3.
Also start keeping track of total number of audio bytes sent over the
air. We now will report both of these values to the audio HAL so that
they can adjust audio playback using these values.

Bug: 32755225
Test: Manual test with a device that supports delay reporting
      Testtracker: 145280
Change-Id: I22c1c6401e4912efab06fa56fb582faae4b38eaf