[automerger] Handle bad bitrate index in mp3dec. am: 8b63812376 am: 1c388693ae am: d1cd373be8 am: b589cde346 am: c512ab83dc am: 1527d62132 am: 93783a217f am: 04ba4099f3 am: c8d96838ba

Change-Id: I7e1b3876e516eafdbe662d142860c872dad279fd