Upgrade libmpeg2 to v1.3.0 am: a4c40189d5

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

Change-Id: I1bf8196b0f27d18556fcc4ff060d5aa3258b2797
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>