ARM64: Prepare Realtek RTD1295

Add a Kconfig option ARCH_REALTEK.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>

arch/arm64/Kconfig.platforms

@@ -121,6 +121,12 @@ config ARCH_QCOM
 	help
 	  This enables support for the ARMv8 based Qualcomm chipsets.
 
+config ARCH_REALTEK
+	bool "Realtek Platforms"
+	help
+	  This enables support for the ARMv8 based Realtek chipsets,
+	  like the RTD1295.
+
 config ARCH_ROCKCHIP
 	bool "Rockchip Platforms"
 	select ARCH_HAS_RESET_CONTROLLER