pinctrl: nuvoton: Add NPCM7xx pinctrl driver

Add Nuvoton BMC NPCM750 Pinmux and Pinconf support.

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
diff --git a/drivers/pinctrl/nuvoton/Makefile b/drivers/pinctrl/nuvoton/Makefile
new file mode 100644
index 0000000..886d007
--- /dev/null
+++ b/drivers/pinctrl/nuvoton/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+# Nuvoton pinctrl support
+
+obj-$(CONFIG_PINCTRL_NPCM7XX)	+= pinctrl-npcm7xx.o