ASoC: rockchip: Drop unneeded properties rockchip i2s/spdif bindings

Neither the rockchip i2s nor the rockchip spdif binding support child
devices so #address-cells and #size-cells properties aren't required.
Remove these from the bindings.

Signed-off-by: Sjoerd Simons <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/sound/rockchip-i2s.txt

···
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: should contain the I2S interrupt.
-- #address-cells: should be 1.
-- #size-cells: should be 0.
 - dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
 	Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: should include "tx" and "rx".
···
 	compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
 	reg = <0xff890000 0x10000>;
 	interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
-	#address-cells = <1>;
-	#size-cells = <0>;
 	dmas = <&pdma1 0>, <&pdma1 1>;
 	dma-names = "tx", "rx";
 	clock-names = "i2s_hclk", "i2s_clk";

Documentation/devicetree/bindings/sound/rockchip-spdif.txt

···
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: should contain the SPDIF interrupt.
-- #address-cells: should be 1.
-- #size-cells: should be 0.
 - dmas: DMA specifiers for tx dma. See the DMA client binding,
   Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: should be "tx"
···
 	compatible = "rockchip,rk3188-spdif", "rockchip,rk3066-spdif";
 	reg = <0x1011e000 0x2000>;
 	interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
-	#address-cells = <1>;
-	#size-cells = <0>;
 	dmas = <&dmac1_s 8>;
 	dma-names = "tx";
 	clock-names = "hclk", "mclk";