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>

drivers/mtd/nand/sunxi_nand_spl.c

@@ -321,6 +321,7 @@ static int nand_read_buffer(uint32_t offs, unsigned int size, void *dest,
 		{  8192, 40, 1024, 5 },
 		{ 16384, 56, 1024, 5 },
 		{  8192, 24, 1024, 5 },
+		{  4096, 24, 1024, 5 },
 	};
 	static int nand_config = -1;
 	int i;