ARM: uniphier: clean-up ft_board_setup()

The 'bd' is passed in ft_board_setup() as the second argument.
Replace 'gd->bd' with 'bd'.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/dram_init.c

@@ -279,11 +279,11 @@ int ft_board_setup(void *fdt, bd_t *bd)
 	if (uniphier_get_soc_id() != UNIPHIER_LD20_ID)
 		return 0;
 
-	for (i = 0; i < ARRAY_SIZE(gd->bd->bi_dram); i++) {
-		if (!gd->bd->bi_dram[i].size)
+	for (i = 0; i < ARRAY_SIZE(bd->bi_dram); i++) {
+		if (!bd->bi_dram[i].size)
 			continue;
 
-		rsv_addr = gd->bd->bi_dram[i].start + gd->bd->bi_dram[i].size;
+		rsv_addr = bd->bi_dram[i].start + bd->bi_dram[i].size;
 		rsv_addr -= rsv_size;
 
 		ret = fdt_add_mem_rsv(fdt, rsv_addr, rsv_size);