[PATCH v2] Add support for XM25LU64C

[Ssunk]

The device is produced by Wuhan Xinxin Semiconductor Manufacturing Corp. (XMC)
and found on some routers from Chinese manufactures.
We need to add this chip to google's AVL
The flash ID was incorrectly set to 0x16 0x41 0x17.
Update to 0x20 0x41 0x17 as per the datasheet.

The data sheet can be found here:
https://www.xmcwh.com/uploads/954/XM25LU64C%20_%20Ver1.5.pdf

Signed-off-by: Kankan Sun <ssunkkan at gmail.com>
---
Changes in v2: 
 - Fix flash ID from 0x16 0x41 0x17 to 0x20 0x41 0x17 (datasheet confirmed).
 drivers/mtd/spi-nor/xmc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mtd/spi-nor/xmc.c b/drivers/mtd/spi-nor/xmc.c
index d5a06054b0dd..bc7b1a2afa9b 100644
--- a/drivers/mtd/spi-nor/xmc.c
+++ b/drivers/mtd/spi-nor/xmc.c
@@ -19,6 +19,11 @@ static const struct flash_info xmc_nor_parts[] = {
 		.name = "XM25QH128A",
 		.size = SZ_16M,
 		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
+	}, {
+		.id = SNOR_ID(0x20, 0x41, 0x17),
+		.name = "XM25LU64C",
+		.size = SZ_8M,
+		.no_sfdp_flags = SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ,
 	},
 };
 
-- 
2.34.1