arm64: dts: renesas: r9a08g045: Add watchdog node

Add the DT node for the watchdog IP accessible by Cortex-A of RZ/G3S
SoC (R9108G045).
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240122111115.2861835-10-claudiu.beznea.uj@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r9a08g045.dtsi

@@ -264,6 +264,20 @@ gic: interrupt-controller@12400000 {
 			      <0x0 0x12440000 0 0x60000>;
 			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_LOW>;
 		};
+
+		wdt0: watchdog@12800800 {
+			compatible = "renesas,r9a08g045-wdt", "renesas,rzg2l-wdt";
+			reg = <0 0x12800800 0 0x400>;
+			clocks = <&cpg CPG_MOD R9A08G045_WDT0_PCLK>,
+				 <&cpg CPG_MOD R9A08G045_WDT0_CLK>;
+			clock-names = "pclk", "oscclk";
+			interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "wdt", "perrout";
+			resets = <&cpg R9A08G045_WDT0_PRESETN>;
+			power-domains = <&cpg>;
+			status = "disabled";
+		};
 	};
 
 	timer {