arm64: dts: mt8173: add timer node

Add device node to enable GPT timer.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8173.dtsi

@@ -247,6 +247,15 @@
 			reg = <0 0x10007000 0 0x100>;
 		};
 
+		timer: timer@10008000 {
+			compatible = "mediatek,mt8173-timer",
+				     "mediatek,mt6577-timer";
+			reg = <0 0x10008000 0 0x1000>;
+			interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&infracfg CLK_INFRA_CLK_13M>,
+				 <&topckgen CLK_TOP_RTC_SEL>;
+		};
+
 		pwrap: pwrap@1000d000 {
 			compatible = "mediatek,mt8173-pwrap";
 			reg = <0 0x1000d000 0 0x1000>;