MIPS: ingenic: DTS: Fix invalid value in #dma-cells

The driver requires two cells and not just one.

Since these nodes are both disabled as no hardware currently use them,
this fix does not really requires a Fixes: tag.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/boot/dts/ingenic/jz4770.dtsi

@@ -222,7 +222,7 @@ dmac0: dma-controller@13420000 {
 		reg = <0x13420000 0xC0
 		       0x13420300 0x20>;
 
-		#dma-cells = <1>;
+		#dma-cells = <2>;
 
 		clocks = <&cgu JZ4770_CLK_DMA>;
 		interrupt-parent = <&intc>;
@@ -237,7 +237,7 @@ dmac1: dma-controller@13420100 {
 		reg = <0x13420100 0xC0
 		       0x13420400 0x20>;
 
-		#dma-cells = <1>;
+		#dma-cells = <2>;
 
 		clocks = <&cgu JZ4770_CLK_DMA>;
 		interrupt-parent = <&intc>;