pinctrl: mscc: Add gpio and pinctrl for Servalt SoC family.

The Servalt SoC family has 36 pins. Currently there is not support
for Servalt pinctrl in Linux kernel.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
diff --git a/drivers/pinctrl/mscc/Kconfig b/drivers/pinctrl/mscc/Kconfig
index d07ea1b..0269565 100644
--- a/drivers/pinctrl/mscc/Kconfig
+++ b/drivers/pinctrl/mscc/Kconfig
@@ -29,3 +29,12 @@
 	help
 	    Support pin multiplexing and pin configuration control on
 	    Microsemi jr2 SoCs.
+
+config PINCTRL_MSCC_SERVALT
+	depends on SOC_SERVALT && PINCTRL_FULL && OF_CONTROL
+	select PINCTRL_MSCC
+	default y
+	bool "Microsemi servalt family pin control driver"
+	help
+	    Support pin multiplexing and pin configuration control on
+	    Microsemi servalt SoCs.