revert a change in CNG_enc_fx()

        IF( hTdCngEnc->burst_ho_cnt > 0 )

        {

#ifdef HARM_NON_LINEARITY

            IF( st_fx->element_mode == EVS_MONO )

            {

                /**allow_cn_step |= ( hTdCngEnc->ho_ener_hist_fx[hTdCngEnc->ho_hist_ptr] > 4 * hTdCngEnc->lp_ener_fx ); */

                /*allow_cn_step |= (hDtxEnc->first_CNG || st->element_mode == EVS_MONO) && (hTdCngEnc->ho_ener_hist[hTdCngEnc->ho_hist_ptr] > lp_ener_thr_scale * hTdCngEnc->lp_ener);*/

                /* (hTdCngEnc->ho_ener_hist[hTdCngEnc->ho_hist_ptr] > lp_ener_thr_scale * hTdCngEnc->lp_ener); */

                L_tmp1 = L_shr( hTdCngEnc->ho_ener_hist_fx[hTdCngEnc->ho_hist_ptr], 2 );

                IF( NE_16( lp_ener_thr_scale, 8 ) )

                {

                    L_tmp1 = L_add( L_tmp1, L_shr( hTdCngEnc->lp_ener_fx, 8 ) );

                }

                L_tmp1 = L_sub( L_tmp1, hTdCngEnc->lp_ener_fx );

                w_temp = W_deposit32_l( L_tmp1 );

            }

            ELSE

#endif

            {

                /**allow_cn_step |= ( hDtxEnc->first_CNG || st->element_mode == EVS_MONO ) && ( hTdCngEnc->ho_ener_hist[hTdCngEnc->ho_hist_ptr] > lp_ener_thr_scale * hTdCngEnc->lp_ener );*/

                w_temp = W_msu_32_16( W_shl( W_deposit32_l( hTdCngEnc->ho_ener_hist_fx[hTdCngEnc->ho_hist_ptr] ), 2 ), hTdCngEnc->lp_ener_fx, lp_ener_thr_scale ); /*Q8*/

            }

            test();

            test();