arm: add basic support for Rockchip RK3066a boards

This adds a generic devicetree board file and a dtsi for boards
based on the RK3066a SoCs from Rockchip.

Apart from the generic parts (gic, clocks, pinctrl) the only components
currently supported are the timers, uarts and mmc ports (all DesignWare-
based).

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1ba358b..126313f 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -171,6 +171,7 @@
 machine-$(CONFIG_ARCH_PRIMA2)		+= prima2
 machine-$(CONFIG_ARCH_PXA)		+= pxa
 machine-$(CONFIG_ARCH_REALVIEW)		+= realview
+machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip
 machine-$(CONFIG_ARCH_RPC)		+= rpc
 machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx
 machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx