Merge "mpeg4enc: Ignore integer overflow in encoder idct functions" am: 01fd6fefb1 am: ac8e138cdb am: 6d62c6e2e0 am: c6c9111db9

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1772936

Change-Id: Ia6b6336bcde3909cdc7f019fd14e7acc3adcd8ae