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/video/rockchip/rk_vop.h b/drivers/video/rockchip/rk_vop.h
index 828974d..8fa2f38 100644
--- a/drivers/video/rockchip/rk_vop.h
+++ b/drivers/video/rockchip/rk_vop.h
@@ -6,7 +6,7 @@
 #ifndef __RK_VOP_H__
 #define __RK_VOP_H__
 
-#include <asm/arch/vop_rk3288.h>
+#include <asm/arch-rockchip/vop_rk3288.h>
 
 struct rk_vop_priv {
 	void *grf;