sunxi_nand_spl: Add config parameter for 4KiB page sized NAND devices

This patch adds support for NAND chips with 4KiB page size and 24/1024
ECC strength. Like the Micron MT29F32G08CBACAWP which is used on the
ICnova-A20 SoM.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c
index bf9b1b1..5985534 100644
--- a/drivers/mtd/nand/sunxi_nand_spl.c
+++ b/drivers/mtd/nand/sunxi_nand_spl.c
@@ -321,6 +321,7 @@
 		{  8192, 40, 1024, 5 },
 		{ 16384, 56, 1024, 5 },
 		{  8192, 24, 1024, 5 },
+		{  4096, 24, 1024, 5 },
 	};
 	static int nand_config = -1;
 	int i;