clk: Add Microchip PolarFire SoC clock driver

Add clock driver code for the Microchip PolarFire SoC. This driver
handles reset and clock control of the Microchip PolarFire SoC device.

Signed-off-by: Padmarao Begari <padmarao.begari@microchip.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Bin Meng <bin.meng@windriver.com>
diff --git a/drivers/clk/microchip/Kconfig b/drivers/clk/microchip/Kconfig
new file mode 100644
index 0000000..b702415
--- /dev/null
+++ b/drivers/clk/microchip/Kconfig
@@ -0,0 +1,5 @@
+config CLK_MPFS
+	bool "Clock support for Microchip PolarFire SoC"
+	depends on CLK && CLK_CCF
+	help
+	  This enables support clock driver for Microchip PolarFire SoC platform.