Fix for LTV crashes

[x] Crash fix for ltv-MASA 2TC bitrate switching from 13.2 kbps to 512 kbps, 48kHz in, 48kHz out, EXT out, JBM Prof 5 test case. Scaling issue addressed in ivas_CalcPowerSpecAndDetectTonalComponents_fx
[x] Crash fix for Test case - 10dB ltv-OMASA 1Dir1TC 4ISM at 48 kbps, 48kHz in, 48kHz out, BINAURAL_ROOM_REVERB out. Added the missed saturation check in tcx_noise_filling_with_shift.