uniphier: make NAND controller base address configurable

The next SoC does not support the NAND controller, but make the base
address configurable for consistency and future proof.

Change-Id: I776e43ff2b0408577919b0b72849c3e1e5ce0758
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/plat/socionext/uniphier/uniphier_io_storage.c b/plat/socionext/uniphier/uniphier_io_storage.c
index b2e2c55..96180f1 100644
--- a/plat/socionext/uniphier/uniphier_io_storage.c
+++ b/plat/socionext/uniphier/uniphier_io_storage.c
@@ -261,12 +261,12 @@
 	return uniphier_io_block_setup(0x20000, block_dev_spec, buffer_offset);
 }
 
-static int uniphier_io_nand_setup(unsigned int soc_id, size_t buffer_offset)
+static int uniphier_io_nand_setup(unsigned int soc, size_t buffer_offset)
 {
 	struct io_block_dev_spec *block_dev_spec;
 	int ret;
 
-	ret = uniphier_nand_init(&block_dev_spec);
+	ret = uniphier_nand_init(soc, &block_dev_spec);
 	if (ret)
 		return ret;