Upgrade Opus to v1.1.2 am: c91ee5b564 am: c0ee1a0762
am: b4d981b5e4

* commit 'b4d981b5e461ac3287205746b3bfed9b700f79fd':
  Upgrade Opus to v1.1.2

Change-Id: I1db8039dddd614b7d96474e89ff28509768b705d