Upgrade libmpeg2 to v1.3.0 am: a4c40189d5 am: 84fd244680

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

Change-Id: Ibc8ba3bde8c95043173b9e46b9c24b472c5df68c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>