MSAN error fix and LTV stereo crash issue fix

[x] Fix for LTV crash: test_param_file_tests[ltv-stereo at 16.4 kbps, 32kHz in, 16kHz out, DTX on]
[x] MSAN error fix

EVS 26.444 BE test passes.
pytests results: 597 failed, 381 skipped

MLD scores:
Original inputs:
MLD > 10: 58
MLD > 5 : 121
MLD < 5 : 418

+10dB inputs:
MLD > 10: 186
MLD > 5 : 197
MLD < 5 : 214

-10dB inputs:
MLD > 10: 19
MLD > 5 : 59
MLD < 5 : 519