RISC-V: Add Microchip PolarFire kconfig option

euleros inclusion
category: feature
feature: initial KVM RISC-V support
bugzilla: 46845
CVE: NA

This patch adds Microchip PolarFire kconfig option which selects
SoC specific drivers.

Reference: https://gitee.com/openeuler/kernel/issues/I26X9VSigned-off-by: NAnup Patel <anup.patel@wdc.com>
Reviewed-by: NYifei Jiang <jiangyifei@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>

arch/riscv/Kconfig.socs

@@ -22,6 +22,13 @@ config SOC_VIRT
 	help
 	  This enables support for QEMU Virt Machine.
 
+config SOC_MICROCHIP_POLARFIRE
+	bool "Microchip PolarFire SoCs"
+	select MCHP_CLK_PFSOC
+	select SIFIVE_PLIC
+	help
+	  This enables support for Microchip PolarFire SoC platforms.
+
 config SOC_KENDRYTE
 	bool "Kendryte K210 SoC"
 	depends on !MMU