ARM: dts: rockchip: add mipi_dsi to VIO power domain on rk3288

The MIPI controllers are part of the VIO power domain so add the
necessary property to indicate this for the controller we support.
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288.dtsi

@@ -881,6 +881,7 @@ mipi_dsi: mipi@ff960000 {
 		interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru SCLK_MIPIDSI_24M>, <&cru PCLK_MIPI_DSI0>;
 		clock-names = "ref", "pclk";
+		power-domains = <&power RK3288_PD_VIO>;
 		rockchip,grf = <&grf>;
 		#address-cells = <1>;
 		#size-cells = <0>;