timer: npcm: Add NPCM timer support

Add Nuvoton BMC NPCM7xx/NPCM8xx timer driver.

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
diff --git a/drivers/timer/Kconfig b/drivers/timer/Kconfig
index 2eda3bc..7b8ab56 100644
--- a/drivers/timer/Kconfig
+++ b/drivers/timer/Kconfig
@@ -172,6 +172,15 @@
 	  The MTU provides 4 decrementing free-running timers.
 	  At the moment, only the first timer is used by the driver.
 
+config NPCM_TIMER
+	bool "Nuvoton NPCM timer support"
+	depends on TIMER
+	help
+	  Select this to enable a timer on Nuvoton NPCM SoCs.
+	  NPCM timer module has 5 down-counting timers, only the first timer
+	  is used to implement timer ops. No support for early timer and
+	  boot timer.
+
 config OMAP_TIMER
 	bool "Omap timer support"
 	depends on TIMER