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/rk3188-board-spl.c b/arch/arm/mach-rockchip/rk3188-board-spl.c
index 5c09b0e..230d69c 100644
--- a/arch/arm/mach-rockchip/rk3188-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3188-board-spl.c
@@ -15,14 +15,14 @@
 #include <syscon.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
-#include <asm/arch/bootrom.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/grf_rk3188.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/periph.h>
-#include <asm/arch/pmu_rk3188.h>
-#include <asm/arch/sdram.h>
-#include <asm/arch/timer.h>
+#include <asm/arch-rockchip/bootrom.h>
+#include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/grf_rk3188.h>
+#include <asm/arch-rockchip/hardware.h>
+#include <asm/arch-rockchip/periph.h>
+#include <asm/arch-rockchip/pmu_rk3188.h>
+#include <asm/arch-rockchip/sdram.h>
+#include <asm/arch-rockchip/timer.h>
 #include <dm/pinctrl.h>
 #include <dm/root.h>
 #include <dm/test.h>