rockchip: rk3288: Move rockchip_get_cru() out of the driver

This function is called from outside the driver. It should be placed into
common SoC code. Move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
index 8a8ca9c..d575f4a 100644
--- a/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
+++ b/arch/arm/include/asm/arch-rockchip/cru_rk3288.h
@@ -25,6 +25,13 @@
 #define PERI_HCLK_HZ	148500000
 #define PERI_PCLK_HZ	74250000
 
+/* Private data for the clock driver - used by rockchip_get_cru() */
+struct rk3288_clk_priv {
+	struct rk3288_grf *grf;
+	struct rk3288_cru *cru;
+	ulong rate;
+};
+
 struct rk3288_cru {
 	struct rk3288_pll {
 		u32 con0;