[Non BE] Fix switched arguments to pre_proc_front_ivas

Under the LOW_RATE_TRANS switch, in ivas_ism_enc.c:155, two input arguments are switched. The code passes ivas_format first and ivas_total_brate second, while the function argument list has it the other way round - was probably just switched by accident. Was revealed by a warning on windows ("conversion from int32_t to int16_t"). @norvell, @janssontoftg please have a look as the switch comes form your side.