arm64: dts: mt8186: Add dma-ranges for the parent "soc" node

Prepare for the MM nodes whose dma-ranges(iova range) is 16GB.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230411093144.2690-15-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

arch/arm64/boot/dts/mediatek/mt8186.dtsi

@@ -324,6 +324,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		compatible = "simple-bus";
+		dma-ranges = <0x0 0x0 0x0 0x0 0x4 0x0>;
 		ranges;
 
 		gic: interrupt-controller@c000000 {