Audio Policy: engine configurable: remove sign bit from conf files am: f489ff8998 am: 336e999bb2
am: dd87e89eab

* commit 'dd87e89eab3249b88ae93ef56d328756110f8928':
  Audio Policy: engine configurable: remove sign bit from conf files

Change-Id: I908c8a4d1ccfbd1f8fb0a0da8d2ce7e90eefb0c7