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/Makefile b/drivers/pinctrl/Makefile
index 9b49782..3b167d0 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -12,6 +12,7 @@
 obj-$(CONFIG_ARCH_ATH79) += ath79/
 obj-$(CONFIG_PINCTRL_INTEL) += intel/
 obj-$(CONFIG_ARCH_MTMIPS) += mtmips/
+obj-$(CONFIG_ARCH_NPCM)         += nuvoton/
 obj-$(CONFIG_ARCH_RMOBILE) += renesas/
 obj-$(CONFIG_PINCTRL_SANDBOX)	+= pinctrl-sandbox.o
 obj-$(CONFIG_PINCTRL_SUNXI)	+= sunxi/