spi: rzv2m-csi: Fix SoC product name

The SoC product name is "RZ/V2M".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Link: https://lore.kernel.org/r/89e9870a2c510387e4d7a863025f4d3639d4a261.1688375020.git.geert+renesas@glider.beSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/Kconfig

@@ -826,7 +826,7 @@ config SPI_RSPI
 	  SPI driver for Renesas RSPI and QSPI blocks.
 
 config SPI_RZV2M_CSI
-	tristate "Renesas RZV2M CSI controller"
+	tristate "Renesas RZ/V2M CSI controller"
 	depends on ARCH_RENESAS || COMPILE_TEST
 	help
 	  SPI driver for Renesas RZ/V2M Clocked Serial Interface (CSI)