nand_spl: nand_boot.c: Init nand_chip.options to 0

Patch 65a9db7b [nand_spl: Fix large page nand_command()] broke
nand booting on canyonlands. "options" has to be initialized to
0. If not, boards might have the NAND_BUSWIDTH_16 bit set,
resulting in wrong offset calculation.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Alex Waterman <awaterman@dawning.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>

nand_spl/nand_boot.c

@@ -246,6 +246,7 @@ void nand_boot(void)
 	nand_info.priv = &nand_chip;
 	nand_chip.IO_ADDR_R = nand_chip.IO_ADDR_W = (void  __iomem *)CONFIG_SYS_NAND_BASE;
 	nand_chip.dev_ready = NULL;	/* preset to NULL */
+	nand_chip.options = 0;
 	board_nand_init(&nand_chip);
 
 	if (nand_chip.select_chip)