arm64: dts: renesas: rzg2: Add interrupt properties to watchdog nodes

Driver doesn't use it yet, but let's describe the HW properly.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220322095512.4707-5-wsa+renesas@sang-engineering.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r8a774a1.dtsi

@@ -283,6 +283,7 @@ rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a774a1-wdt",
 				     "renesas,rcar-gen3-wdt";
 			reg = <0 0xe6020000 0 0x0c>;
+			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 402>;
 			power-domains = <&sysc R8A774A1_PD_ALWAYS_ON>;
 			resets = <&cpg 402>;

arch/arm64/boot/dts/renesas/r8a774b1.dtsi

@@ -156,6 +156,7 @@ rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a774b1-wdt",
 				     "renesas,rcar-gen3-wdt";
 			reg = <0 0xe6020000 0 0x0c>;
+			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 402>;
 			power-domains = <&sysc R8A774B1_PD_ALWAYS_ON>;
 			resets = <&cpg 402>;

arch/arm64/boot/dts/renesas/r8a774c0.dtsi

@@ -145,6 +145,7 @@ rwdt: watchdog@e6020000 {
 			compatible = "renesas,r8a774c0-wdt",
 				     "renesas,rcar-gen3-wdt";
 			reg = <0 0xe6020000 0 0x0c>;
+			interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 402>;
 			power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>;
 			resets = <&cpg 402>;