Upgrade libmpeg2 to v1.3.0 am: a4c40189d5 am: 1de87a444d am: 97f54217b5

Original change: https://android-review.googlesource.com/c/platform/external/libmpeg2/+/2798076

Change-Id: I367efde3e80b046830e72044790e37257fd08d58
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>