Resolve "[CLANG18] MSAN: use-of-uninitialized-value in use-of-uninitialized-value in ivas_destroy_dec_fx"

• Related issues: #2392 (closed)
• Requested reviewers:

Reason why this change is needed

• The MSAN memory sanitizer reports reading of uninitialized memory in case the decoder is not opened successfully

Description of the change

• Fix MSAN error.

Affected operating points

• All is BE.

Closes #2392 (closed)