Remove DFT_PRED_RES scaling in past_dmx_nrg calculation in stereo_dft_generate_res_pred_fx()

                test();

                IF( !bfi || GE_16( b, hStereoDft->res_cod_band_max ) )

                {

#ifdef FIX_1946_CRASH_JBM_PROCESSING

                    Word16 q_div, scaleFactor;

#else

                    Word16 q_div;

#endif

                    Word16 op;

#ifdef FIX_1946_CRASH_JBM_PROCESSING

                    scaleFactor = getScaleFactor32( &DFT_PRED_RES[shl( hStereoDft->band_limits[b], 1 )], sub( shl( len, 1 ), 1 ) ); // calc it in the range [2*hStereoDft->band_limits[b] : 2*(len-1)+1]

                    IF( GT_16( scaleFactor, 3 ) )

                    {

                        scaleFactor = sub( scaleFactor, 3 ); // add headroom

                    }

                    ELSE

                    {

                        scaleFactor = 0; // no guard added since it was fine without scaleFactor

                        move16();

                    }

                    FOR( i = hStereoDft->band_limits[b]; i < len; i++ )

                    {

                        Word32 x_2i = L_shl( DFT_PRED_RES[2 * i], scaleFactor );

                        Word32 x_2ip1 = L_shl( DFT_PRED_RES[2 * i + 1], scaleFactor );

                        past_dmx_nrg = Madd_32_32( Madd_32_32( past_dmx_nrg, x_2i, x_2i ), x_2ip1, x_2ip1 ); /* q_dft - 2*scaleFactor */

                        past_dmx_nrg = Madd_32_32( Madd_32_32( past_dmx_nrg, DFT_PRED_RES[2 * i], DFT_PRED_RES[2 * i] ), DFT_PRED_RES[2 * i + 1], DFT_PRED_RES[2 * i + 1] ); /* q_dft */

                    }

#endif

                    op = BASOP_Util_Divide3232_Scale( L_add( 1, dmx_nrg ), L_add( 1, past_dmx_nrg ), &q_div ); /* q_sqrt */

#ifdef FIX_1946_CRASH_JBM_PROCESSING

                    q_sqrt = add( q_div, shl( scaleFactor, 1 ) );

#else

                    q_sqrt = q_div;

#endif

                    move16();

                    norm_fac = Sqrt16( op, &q_sqrt );

                    g2 = Mpy_32_16_1( pPredGain[b], norm_fac ); /* Q31 */

                    IF( LE_32( q_sqrt, norm_l( g2 ) ) )