[automerger skipped] libFLAC/bitreader.c: Fix out-of-bounds read am: 029048f823 -s ours

am skip reason: skipped by user essick

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/flac/+/12262330

Change-Id: Ia82c6c166a942dc311a089760b0691f3540fb7b8