kernel: add support for XMC XM25QH128C

The XMC XM25QH128C is a 16MB SPI NOR chip. The patch is verified on Ruijie RG-EW3200GX PRO.
Datasheet available at https://www.xmcwh.com/uploads/435/XM25QH128C.pdf

Signed-off-by: Langhua Ye <[email protected]>

target/linux/generic/pending-5.10/485-mtd-spi-nor-add-xmc-xm25qh128c.patch

@@ -0,0 +1,11 @@
+--- a/drivers/mtd/spi-nor/xmc.c
++++ b/drivers/mtd/spi-nor/xmc.c
+@@ -14,6 +14,8 @@ static const struct flash_info xmc_parts
+ 			    SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+ 	{ "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256,
+ 			     SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
++	{ "XM25QH128C", INFO(0x204018, 0, 64 * 1024, 256,
++			     SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+ };
+ 
+ const struct spi_nor_manufacturer spi_nor_xmc = {