pinctrl: renesas: add R906G032 driver

Pinctrl/pinconf driver for Renesas RZ/N1 (R906G032) SoC.

This is quite rudimentary right now, and only supports applying a
default pin configuration as specified by the device tree.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig
index 509cdd3..0ea39b4 100644
--- a/drivers/pinctrl/renesas/Kconfig
+++ b/drivers/pinctrl/renesas/Kconfig
@@ -139,3 +139,10 @@
 	  Support pin multiplexing control on Renesas RZ/A1 R7S72100 SoCs.
 
 endif
+
+config PINCTRL_RZN1
+	bool "Renesas RZ/N1 R906G032 pin control driver"
+	depends on RZN1
+	default y if RZN1
+	help
+	  Support pin multiplexing control on Renesas RZ/N1 R906G032 SoCs.