Merge "MatroskaExtractor: release buffers in error cases" into rvc-dev am: 0ad9221e am: cd55c15e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11388502

Change-Id: Ibae4a77476ee27065a635df284d3cb0ac2b0d8fe