rockchip: Add basic support for evb-rk3036 board

This add some basic files required to allow the board to dispaly
serial message and can run command(mmc info etc)

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Moved board Kconfig fragment from previous patch into this one to fix
build error:
Signed-off-by: Simon Glass <sjg@chromium.org>

Series-changes: 8
- moved board Kconfig fragment from previous patch into this one
diff --git a/arch/arm/mach-rockchip/rk3036/Kconfig b/arch/arm/mach-rockchip/rk3036/Kconfig
index d76d5e1..0fbc58e 100644
--- a/arch/arm/mach-rockchip/rk3036/Kconfig
+++ b/arch/arm/mach-rockchip/rk3036/Kconfig
@@ -1,3 +1,17 @@
 if ROCKCHIP_RK3036
 
+config TARGET_EVB_RK3036
+	bool "EVB_RK3036"
+
+config SYS_SOC
+	default "rockchip"
+
+config SYS_MALLOC_F_LEN
+	default 0x400
+
+config ROCKCHIP_COMMON
+	bool "Support rk common fuction"
+
+source "board/evb_rk3036/evb_rk3036/Kconfig"
+
 endif