imx: MX6DQ{P}/DL:SABRESD Fix bmode eMMC failure

The BOOTCFG value used by bmode for SABRESD eMMC boot are actually for SD card.
Fixed the value to correct one.
Signed-off-by: NYe Li <ye.li@nxp.com>
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Reviewed-by: NStefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: NFabio Estevam <fabio.estevam@nxp.com>

board/freescale/mx6sabresd/mx6sabresd.c

@@ -638,7 +638,7 @@ static const struct boot_mode board_boot_modes[] = {
 	{"sd2",	 MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
 	{"sd3",	 MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
 	/* 8 bit bus width */
-	{"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
+	{"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
 	{NULL,	 0},
 };
 #endif