h264dec: check for overflows when calculating allocation size. am: a3dd713 am: d504c68 am: 9f3762d am: 76f606b am: 9d9ebc9 am: 8e46016 am: 3e1803f am: 13d3588 am: fa12d6f
am: 1c6e052

* commit '1c6e052a29e3940df98ad808a1aa20ba122550f5':
  h264dec: check for overflows when calculating allocation size.

Change-Id: I0ff41780384535f43aa2d415c045249b7c42d783