ARM: dts: r-mobile: Add missing Ethernet PHY resets

Describe all Ethernet PHY reset GPIOs on R-Mobile boards, to avoid
relying solely on boot loaders to bring PHYs out of reset.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b41bf0098ff193fbff9fad04d00075ce1bea1986.1631177442.git.geert+renesas@glider.be

arch/arm/boot/dts/r8a73a4-ape6evm.dts

@@ -199,6 +199,7 @@ ethernet@8000000 {
 		reg-io-width = <4>;
 		smsc,irq-active-high;
 		smsc,irq-push-pull;
+		reset-gpios = <&pfc 270 GPIO_ACTIVE_LOW>;
 		vdd33a-supply = <&ape6evm_fixed_3v3>;
 		vddvario-supply = <&ape6evm_fixed_1v8>;
 	};

arch/arm/boot/dts/r8a7740-armadillo800eva.dts

@@ -173,6 +173,7 @@ phy0: ethernet-phy@0 {
 		compatible = "ethernet-phy-id0007.c0f1",
 			     "ethernet-phy-ieee802.3-c22";
 		reg = <0>;
+		reset-gpios = <&pfc 18 GPIO_ACTIVE_LOW>;
 	};
 };