Fix for LTV crash for stereo at 13.2 kbps, 32kHz in, 32kHz out, DTX on, random...

Fix for LTV crash for stereo at 13.2 kbps, 32kHz in, 32kHz out, DTX on, random FER at 5%, bandwidth switching

EVS 26.444 BE test passes.
decoder pytests:
MLD scores:
Original inputs: 562 failed, 374 skipped
MLD > 10: 46
MLD > 5 : 108
MLD < 5 : 408
+10dB inputs: 562 failed, 374 skipped
MLD > 10: 168
MLD > 5 : 185
MLD < 5 : 209
-10dB inputs: 562 failed, 374 skipped
MLD > 10: 13
MLD > 5 : 47
MLD < 5 : 502

encoder pytests results:
MLD scores:
Original inputs: 562 tests: 90 passes, 472 failures, 374 skipped
MLD > 10: 16
MLD > 5 : 31
MLD < 5 : 515
+10dB inputs: 562 tests: 90 passes, 472 failures, 374 skipped
MLD > 10: 26
MLD > 5 : 92
MLD < 5 : 444
\-10dB inputs: 562 tests: 76 passes, 486 failures, 374 skipped
MLD > 10: 5
MLD > 5 : 19
MLD < 5 : 538