rockchip: use 'arch-rockchip' as header file path

Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 94dd011..05ec5fc 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -13,12 +13,12 @@
 #include <regmap.h>
 #include <syscon.h>
 #include <asm/io.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/sdram_common.h>
-#include <asm/arch/sdram_rk3399.h>
-#include <asm/arch/cru_rk3399.h>
-#include <asm/arch/grf_rk3399.h>
-#include <asm/arch/hardware.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/sdram_common.h>
+#include <asm/arch-rockchip/sdram_rk3399.h>
+#include <asm/arch-rockchip/cru_rk3399.h>
+#include <asm/arch-rockchip/grf_rk3399.h>
+#include <asm/arch-rockchip/hardware.h>
 #include <linux/err.h>
 #include <time.h>