ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D

i.MX7D Supported ARCH Timer.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 15df34fb..da42fdf 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -561,6 +561,7 @@
 	bool "i.MX7 Dual support"
 	select PINCTRL_IMX7D
 	select ARM_GIC
+	select HAVE_ARM_ARCH_TIMER
 	select HAVE_IMX_ANATOP
 	select HAVE_IMX_MMDC
 	select HAVE_IMX_SRC