Merge "cherry-pick vp8 integer overflow fixes" am: 286fa7c031

Original change: https://android-review.googlesource.com/c/platform/external/libvpx/+/1887622

Bug: b/189602769
Change-Id: I4729985b173a98c0e49f6bfd3f9ed0b52471526d
(cherry picked from commit af3123523b0cb1b534f8f476a5e94e75f95b08e2)
4 files changed