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
am: ed99ef79

* commit 'ed99ef79':
  h264dec: check for overflows when calculating allocation size.

Change-Id: If9969bddb7c33f7e3145542da278e36261c21ff3