Crash in SBA DTX modes with longer testvectors when decoding to stereo

Basic info

• Commit SHA: f7278d9d
• Platform: all

Bug description

SBA DTX at 80 and 64 kbps cause the decoder to crash when decoding the longer testvector HOA3 bitstream to stereo.

Ways to reproduce

git clone https://forge.3gpp.org/rep/ivas-codec-pc/ivas-pc-testfiles.git -b longer-testv-on-runners --single-branch
./IVAS_cod -sba 3 -dtx -max_band swb 80000 48 ivas-pc-testfiles/ltv48_HOA3.wav bit
./IVAS_dec stereo 48 bit out.wav