h264dec: check for overflows when calculating allocation size. am: a3dd7138 am:...

h264dec: check for overflows when calculating allocation size. am: a3dd7138 am: d504c683 am: 9f3762d8 am: 76f606bd am: 9d9ebc99 am: 8e460160 am: 3e1803fc am: 13d35885 am: fa12d6f8
am: 1c6e052a

* commit '1c6e052a':
  h264dec: check for overflows when calculating allocation size.

Change-Id: I0ff41780384535f43aa2d415c045249b7c42d783