Incorrect use of TD decorrelator in bitrate switching

The use of TD decorrelator at the binaural output of SBA/MASA/MC modes is indicated by parameter st_ivas->hDiracDecBin->useTdDecorr. This parameter is set at the initialization in function ivas_dirac_dec_init_binaural_data() depending on the number of TCs and ivas_totoal_brate but it is not updated in case of bitrate switching. This results in the wrong use of the TD decorrelator in bitrate switching scenarios.