[ARM] omap: convert OMAP2 to use clkdev

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index fc7b683..9037213 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -16,6 +16,7 @@
 config ARCH_OMAP2
 	bool "TI OMAP2"
 	select CPU_V6
+	select COMMON_CLKDEV
 
 config ARCH_OMAP3
 	bool "TI OMAP3"