a5: Rename README file
* Otherwise Github won't format it

Change-Id: I18b0725780734a3ca3127623e791702a3fa44644
(cherry picked from commit 330d6d10e92018200a8e34c81165fb9f34517b24)
a5: Add a missing BT blob

Change-Id: I0ce5e06510a1558fa8d72f16ab988d0da8ce69d8
(cherry picked from commit c8570893599a03eafdc60d8e4f434358760710d5)
a5: audio: Fix incorrect headphone channels
* Swap left and right

Change-Id: I78e4aae5e43064f1ccbac7464debb78108e2162a