mtd: spi-nor: hisi-sfc: Try to provide some clarity on which SFC we are

The driver is for the HiSilicon FMC (Flash Memory Controller), which
supports SPI NOR in addition other memory technologies, like SPI NAND.

Indeed, the naming in the driver is a little inappropriate, especially
considering that there is already another HiSilicon SPI NOR flash
controller (which I believe the FMC is derived from).

Since we now want to provide software support for this other HiSilicon
controller, update code comments to at least try to make it clear that
this driver is for the FMC.
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>

drivers/mtd/spi-nor/Kconfig

@@ -46,11 +46,11 @@ config SPI_CADENCE_QUADSPI
 	  Flash as an MTD device.
 
 config SPI_HISI_SFC
-	tristate "Hisilicon SPI-NOR Flash Controller(SFC)"
+	tristate "Hisilicon FMC SPI-NOR Flash Controller(SFC)"
 	depends on ARCH_HISI || COMPILE_TEST
 	depends on HAS_IOMEM
 	help
-	  This enables support for hisilicon SPI-NOR flash controller.
+	  This enables support for HiSilicon FMC SPI-NOR flash controller.
 
 config SPI_MTK_QUADSPI
 	tristate "MediaTek Quad SPI controller"

drivers/mtd/spi-nor/hisi-sfc.c

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * HiSilicon SPI Nor Flash Controller Driver
+ * HiSilicon FMC SPI-NOR flash controller driver
  *
  * Copyright (c) 2015-2016 HiSilicon Technologies Co., Ltd.
  */