Merge "ANDROID: Add simple fuzzing targets for video and video+audio encoding." am: 5fdfb920c6 am: 47d91ab99b am: 8fb71d456f

Original change: https://android-review.googlesource.com/c/platform/external/libwebm/+/1506861

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib47a0cda6aca7c485571d3ae3a24e0a8a3ec5ec5