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

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

Change-Id: I80a2001a421155dc654e3e0b7e1d4698135e0a64
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>