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/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
index 2012d9f..1d940a0 100644
--- a/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
+++ b/arch/arm/mach-rockchip/rk3036/sdram_rk3036.c
@@ -5,12 +5,12 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/types.h>
-#include <asm/arch/cru_rk3036.h>
-#include <asm/arch/grf_rk3036.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/sdram_rk3036.h>
-#include <asm/arch/timer.h>
-#include <asm/arch/uart.h>
+#include <asm/arch-rockchip/cru_rk3036.h>
+#include <asm/arch-rockchip/grf_rk3036.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/sdram_rk3036.h>
+#include <asm/arch-rockchip/timer.h>
+#include <asm/arch-rockchip/uart.h>
 
 /*
  * we can not fit the code to access the device tree in SPL