Resolve "USAN: applying zero offset to null pointer in ivas_jbm_dec.c"

• Related issues: #1003 (closed)
• Requested reviewers: @vaclav

Reason why this change is needed

Clang usan sanitizer test in pipeline found an error:

lib_dec/ivas_jbm_dec.c:1042:24: runtime error: applying zero offset to null pointer
SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-offset lib_dec/ivas_jbm_dec.c:1042:24 in 

Link to test pipeline: https://forge.3gpp.org/rep/ivas-codec-pc/ivas-codec/-/jobs/218864

Description of the change

Fix TC buffer reconfiguration for ParamISM to binaraul output at a rate switch reconfiguration.

Affected operating points

• BE
• Produced bitstream is BE compared to previous state (no encoder change).

Related to #1003 (closed)