arm64: dts: renesas: rzg2ul-smarc-som: Add PHY interrupt support for ETH{0/1}

The PHY interrupt (INT_N) pin is connected to IRQ2 and IRQ7 for ETH0 and
ETH1 respectively.

Signed-off-by: Lad Prabhakar <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Geert Uytterhoeven <[e-mail]>

arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi

···
  */
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irqc-rzg2l.h>
 #include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
 
 / {
···
 		compatible = "ethernet-phy-id0022.1640",
 			     "ethernet-phy-ieee802.3-c22";
 		reg = <7>;
+		interrupt-parent = <&irqc>;
+		interrupts = <RZG2L_IRQ2 IRQ_TYPE_LEVEL_LOW>;
 		rxc-skew-psec = <2400>;
 		txc-skew-psec = <2400>;
 		rxdv-skew-psec = <0>;
···
 		compatible = "ethernet-phy-id0022.1640",
 			     "ethernet-phy-ieee802.3-c22";
 		reg = <7>;
+		interrupt-parent = <&irqc>;
+		interrupts = <RZG2L_IRQ7 IRQ_TYPE_LEVEL_LOW>;
 		rxc-skew-psec = <2400>;
 		txc-skew-psec = <2400>;
 		rxdv-skew-psec = <0>;
···
 			 <RZG2L_PORT_PINMUX(3, 2, 1)>, /* ET0_RXD0 */
 			 <RZG2L_PORT_PINMUX(3, 3, 1)>, /* ET0_RXD1 */
 			 <RZG2L_PORT_PINMUX(4, 0, 1)>, /* ET0_RXD2 */
-			 <RZG2L_PORT_PINMUX(4, 1, 1)>; /* ET0_RXD3 */
+			 <RZG2L_PORT_PINMUX(4, 1, 1)>, /* ET0_RXD3 */
+			 <RZG2L_PORT_PINMUX(5, 1, 7)>; /* IRQ2 */
 	};
 
 	eth1_pins: eth1 {
···
 			 <RZG2L_PORT_PINMUX(9, 1, 1)>, /* ET1_RXD0 */
 			 <RZG2L_PORT_PINMUX(9, 2, 1)>, /* ET1_RXD1 */
 			 <RZG2L_PORT_PINMUX(9, 3, 1)>, /* ET1_RXD2 */
-			 <RZG2L_PORT_PINMUX(10, 0, 1)>; /* ET1_RXD3 */
+			 <RZG2L_PORT_PINMUX(10, 0, 1)>, /* ET1_RXD3 */
+			 <RZG2L_PORT_PINMUX(18, 5, 1)>; /* IRQ7 */
 	};
 
 	sdhi0_emmc_pins: sd0emmc {