AHAL: Set cached volume in StreamOutPrimary::Open()

    - Noise is heard at the begning of AAudio playback.
    - out_write() is never called in case of AAudio due to which
      cached volume will never be set. And volume remains unmuted
      until setVolume is called next time.
    - Set cached volume on StreamOutPrimary::Open() and remove it
      from out_write().

Change-Id: I2860aaf71dd5b4d0768473ff23128bbd65a0c192
(cherry picked from commit 28f5035860b9c00aa3a7e5eb983ec9c4acc0d1b4)
1 file changed