arm/imx6q: select ARCH_HAS_CPUFREQ

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 67556bf..9132c04 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -595,6 +595,7 @@
 
 config SOC_IMX6Q
 	bool "i.MX6 Quad support"
+	select ARCH_HAS_CPUFREQ
 	select ARM_GIC
 	select CACHE_L2X0
 	select CPU_V7