arm64: dts: mt8183: add systimer0 device node

Add systimer device node for MT8183.

Signed-off-by: Dehui Sun <dehui.sun@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8183.dtsi

@@ -269,6 +269,15 @@
 			clock-names = "spi", "wrap";
 		};
 
+		systimer: timer@10017000 {
+			compatible = "mediatek,mt8183-timer",
+				     "mediatek,mt6765-timer";
+			reg = <0 0x10017000 0 0x1000>;
+			interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&topckgen CLK_TOP_CLK13M>;
+			clock-names = "clk13m";
+		};
+
 		auxadc: auxadc@11001000 {
 			compatible = "mediatek,mt8183-auxadc",
 				     "mediatek,mt8173-auxadc";