Merge "ACodec: Reduce the TWOmxNode wrapper in GraphicBufferSource" am: 712366758b

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1531598

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Iad38d2c353e8fbff4cf12c0cbcf0706fb25de73e