i2c: nuvoton: Add NPCM7xx i2c driver

Add Nuvoton BMC NPCM750 i2c driver

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 72d06e4..be4724b 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -447,6 +447,11 @@
 	  have several I2C ports and all are provided, controlled by the
 	  device tree.
 
+config SYS_I2C_NPCM
+	bool "Nuvoton NPCM I2C driver"
+	help
+	  Support for Nuvoton I2C controller driver.
+
 config SYS_I2C_OCORES
 	bool "ocores I2C driver"
 	depends on DM_I2C