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/include/configs/rk3188_common.h b/include/configs/rk3188_common.h
index 4f6f4af..1d41702 100644
--- a/include/configs/rk3188_common.h
+++ b/include/configs/rk3188_common.h
@@ -8,7 +8,7 @@
 
 #define CONFIG_SYS_CACHELINE_SIZE	64
 
-#include <asm/arch/hardware.h>
+#include <asm/arch-rockchip/hardware.h>
 #include "rockchip-common.h"
 
 #define CONFIG_SKIP_LOWLEVEL_INIT_ONLY