Fix cts fail AudioTrackTest#testPlaybackHeadPositionIncrease

When property audio.deep_buffer.media is true, the deep buffer flag should be added if getOutput() parameter is music stream for getting correct track buffer size.

Bug: 285222536
Test: adb shell "am instrument -e class android.media.audio.cts.AudioTrackTest#testPlaybackHeadPositionIncrease -w -r android.media.audio.cts/androidx.test.runner.AndroidJUnitRunner"
Change-Id: I896a9b1807ec6ae512344d8a1e3e681806bbff22