OSV-2023-239 Use-of-uninitialized-value in ihevce_strm_fill_done

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57401 Crash type: Use-of-uninitialized-value Crash state: ihevcestrmfilldone ihevceentcodingthrd osalfunc...