drivers/spi: Add Winbond W25Q256JW details

Add winbond W25Q256JW chip details.

Change-Id: I0dab96701285be95a76cee674f83339bc63d9f82
Signed-off-by: Ritul Guru <ritul.bits@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64634
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

src/drivers/spi/winbond.c

@@ -229,6 +229,15 @@ static const struct spi_flash_part_id flash_table[] = {
 		.protection_granularity_shift	= 16,
 		.bp_bits			= 4,
 	},
+	{
+		/* W25Q256JW */
+		.id[0]				= 0x6019,
+		.nr_sectors_shift		= 13,
+		.fast_read_dual_output_support	= 1,
+		.fast_read_dual_io_support	= 1,
+		.protection_granularity_shift	= 16,
+		.bp_bits			= 4,
+	},
 };
 
 /*