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
am: 5b817c59

* commit '5b817c59':
  h264dec: check for overflows when calculating allocation size.

Change-Id: I3131d965af779086440db306c7b37b5d4bde6dce