rockchip: rk3036: Add clock driver

Add a driver for setting up and modifying the various PLLs, peripheral
clocks and mmc clocks on RK3036

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 008ec10..4a6a4a8 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -6,5 +6,6 @@
 #
 
 obj-$(CONFIG_CLK) += clk-uclass.o
+obj-$(CONFIG_ROCKCHIP_RK3036) += clk_rk3036.o
 obj-$(CONFIG_ROCKCHIP_RK3288) += clk_rk3288.o
 obj-$(CONFIG_SANDBOX) += clk_sandbox.o