issue: 2446 changing two remaining instances of con_tcx_fx() to ivas version

        IF( bfi != 0 && ( st->last_core != ACELP_CORE ) )

        {

            /* PLC: [TCX: TD PLC] */

#ifndef HARMONIZE_2446_CON_TCX_FX

            con_tcx_fx( st, &synthFB[0] );

#else

            con_tcx_ivas_fx(st, &synthFB[0], NULL, 0, NULL, (Word16)1);

#endif

            lerp( synthFB, synth, st->L_frame, hTcxDec->L_frameTCX );

            st->con_tcx = 1;

            move16();