Use bufferItem's fence when calling release

When we acquire and release immediately, we want to use the bufferItem's
release fence instead of NO_FENCE.

Also add an error log if there's a failure in acquireBuffer, which
really should never happen.

Test: BLASTBufferQueueTest
Bug: 200285149
Change-Id: I5e869b0f66f37b15b9317985b30f539dbfea831c