ARM: OMAP5: Enable arch timer support

Enable Cortex A15 generic timer support for OMAP5 based SOCs.
The CPU local timers run on the free running real time counter clock.

Acked-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 4b773fd..4609163 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -74,6 +74,7 @@
 	select HAVE_SMP
 	select ARM_CPU_SUSPEND if PM
 	select SOC_HAS_REALTIME_COUNTER
+	select ARM_ARCH_TIMER
 
 comment "OMAP Core Type"
 	depends on ARCH_OMAP2