[non-BE] Resolve "Bitstream not synchronizing for encoder and decoder in GSC Es_pred"

• Related issues: #1264 (closed)
• Requested reviewers: @malenovsky

Reason why this change is needed

• Bitstream not synchronized between encoder and decoder in ACELP GSC Inactive coder type in OMASA. The issue is a mismatch in logic around inactive_coder_type_flag and MAX_GSC_INACTIVE_BRATE. Consequently, the parameter Es_pred was written at the encoder (though it should not be written at all) and read at the decoder at a different bitstream position (though it should not be read at all as it is not needed for decoding).

Description of the change

• Fix bitstream synchronization between encoder and decoder.

Affected operating points

• Not BE for OMASA in rare cases when ivas_combined_format_brate_sanity() rewrites inactive_coder_type_flag.
• Differences are small, and subjectively unimportant for bitstream from #1264 (closed) (they are in magnitude of +-12).
• Bitstream is affected but it was buggy before.*