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/cmd/rockusb.c b/cmd/rockusb.c
index e0c1480..9b70c6a 100644
--- a/cmd/rockusb.c
+++ b/cmd/rockusb.c
@@ -8,7 +8,7 @@
 #include <console.h>
 #include <g_dnl.h>
 #include <usb.h>
-#include <asm/arch/f_rockusb.h>
+#include <asm/arch-rockchip/f_rockusb.h>
 
 static int do_rockusb(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 {