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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Id95a7ffe334a7fb8231e87e150388bb63e3d2c76