i2c: cadence: Add RISCV architecture support

Add RISCV support to Cadence I2C Kconfig which is used in platform
such as the StarFive JH8100.

Signed-off-by: Eng Lee Teh <englee.teh@starfivetech.com>
Signed-off-by: Ji Sheng Teoh <jisheng.teoh@starfivetech.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>

Author: JiShengTeoh

drivers/i2c/busses/Kconfig

@@ -508,7 +508,7 @@ config I2C_BRCMSTB
 
 config I2C_CADENCE
 	tristate "Cadence I2C Controller"
-	depends on ARCH_ZYNQ || ARM64 || XTENSA || COMPILE_TEST
+	depends on ARCH_ZYNQ || ARM64 || XTENSA || RISCV || COMPILE_TEST
 	help
 	  Say yes here to select Cadence I2C Host Controller. This controller is
 	  e.g. used by Xilinx Zynq.