Merge "Codec2: Add C2Fence returnable fetch interfaces to C2BlockPool" am: 6380223920 am: 1a8fbc6e14 am: ead20ba11f

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1650113

Change-Id: If66c36f0c9625811cdabbbe841e24144e1d02aaf