msm8660: Import audio HAL

Change-Id: I81ca52d392e5bba337f4a3a1288f716ba265ffe1
msm8660: Update for audio device API 2.0

 * See 7801df9b35653562139ddaaa5c29c61f0eddc92f for 8960

Change-Id: I6684955123ac1b1f3c09653aeb95a1acb7e345d1
msm8660: Update policy manager for MR1

 * From 7x30 HAL

Change-Id: I4dc080e1fe3f81cb6e6ba3aa0e51c43143cd5b11