Fix [CLANG18] MSAN: use-of-uninitialized-value in nb_bits_metadata[]
- Related issues: ivas-codec-pc/ivas-codec#1487
- Requested reviewers: @kiene
Reason why this change is needed
- MSAN complains on CLANG18
Description of the change
- Describe what is done.
Affected operating points
- All is BE - the uninitialized values from the buffer are never used.