[ARM] 5549/1: Add clock api for w90p910 platform.

Add clock api for w90p910 platform.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 013993c..7d54494 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -490,6 +490,7 @@
 	select CPU_ARM926T
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_GPIO
+	select COMMON_CLKDEV
 	help
 		Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
 		can login www.mcuos.com or www.nuvoton.com to know more.