tree 127a1c79ff20862a163f779749431f940ebbae24
parent 240fc43222070bc9e19d70f5a38407d424ea34c1
author David Lin <dtwlin@google.com> 1486441898 -0800
committer David Lin <dtwlin@google.com> 1488426222 -0800

hal: add usb audio tunnel support

This patch imports the USB audio tunnel feature from QCOM software release
AU_LINUX_ANDROID_LA.UM.5.7.R1.07.00.00.253.

Bug: 33030406
Test: playback, record and path switching

Change-Id: I2479f984c0d72b2f4e9b6a7db22eb4616855b7e7
Signed-off-by: David Lin <dtwlin@google.com>