rockchip: add a dummy byte for the sdram-channel property

Add an extra byte so that this data is not byteswapped.

Signed-off-by: Ziyuan Xu <jk.kernel@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>

arch/arm/dts/rk3288-evb.dts

@@ -25,7 +25,8 @@
 		0x8 0x1f4>;
 	rockchip,phy-timing = <0x48d7dd93 0x187008d8 0x121076
 		0x0 0xc3 0x6 0x2>;
-	rockchip,sdram-channel = /bits/ 8 <0x2 0xa 0x3 0x2 0x2 0x0 0xe 0xe>;
+	/* Add a dummy value to cause of-platdata think this is bytes */
+	rockchip,sdram-channel = /bits/ 8 <0x2 0xa 0x3 0x2 0x2 0x0 0xe 0xe 0xff>;
 	rockchip,sdram-params = <0x20d266a4 0x5b6 2 533000000 6 9 0>;
 };