[automerger skipped] decoder: increase intermediate bitstream buffer size am: edc4cac357 -s ours

am skip reason: Merged-In Ifc8cbbdf46ced7dc1586798be111ef6729d0d808 with SHA-1 3cb820f353 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libmpeg2/+/24527359

Change-Id: I0df35266b63c3fbaebbb1bb7aa95cd0649085f0d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>