powerpc/p1010rdb: nandboot: compare SVR properly

We were not comparing the SVRs properly previously. This comparison
will properly shift the SVR and mask off the E bit

This fixes the boot output to show the correct DDR bus width:

512 MiB (DDR3, 16-bit, CL=5, ECC off)

instead of

512 MiB (DDR3, 32-bit, CL=5, ECC off)

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

nand_spl/board/freescale/p1010rdb/nand_boot.c

@@ -35,7 +35,8 @@ unsigned long ddr_freq_mhz;
 void sdram_init(void)
 {
 	ccsr_ddr_t *ddr = (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
-	u32 svr = mfspr(SPRN_SVR);
+	/* mask off E bit */
+	u32 svr = SVR_SOC_VER(mfspr(SPRN_SVR));
 
 	out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL | SDRAM_CFG_32_BE);
 	out_be32(&ddr->cs0_bnds, CONFIG_SYS_DDR_CS0_BNDS);