sf: Add S25FL128S_256K IDs

Add IDs for this new chip.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
diff --git a/drivers/mtd/spi/sf_params.c b/drivers/mtd/spi/sf_params.c
index 5f63023..eb372b7 100644
--- a/drivers/mtd/spi/sf_params.c
+++ b/drivers/mtd/spi/sf_params.c
@@ -54,6 +54,7 @@
 	{"S25FL128P_64K",  0x012018, 0x0301,    64 * 1024,   256, RD_FULL,		     WR_QPP},
 	{"S25FL032P",	   0x010215, 0x4d00,    64 * 1024,    64, RD_FULL,		     WR_QPP},
 	{"S25FL064P",	   0x010216, 0x4d00,    64 * 1024,   128, RD_FULL,		     WR_QPP},
+	{"S25FL128S_256K", 0x012018, 0x4d00,   256 * 1024,    64, RD_FULL,		     WR_QPP},
 	{"S25FL128S_64K",  0x012018, 0x4d01,    64 * 1024,   256, RD_FULL,		     WR_QPP},
 	{"S25FL256S_256K", 0x010219, 0x4d00,   256 * 1024,   128, RD_FULL,		     WR_QPP},
 	{"S25FL256S_64K",  0x010219, 0x4d01,	64 * 1024,   512, RD_FULL,		     WR_QPP},