ARM: dts: uniphier: Move interrupt-parent property to each child node in uniphier-support-card

The dtschema warning:
  uniphier-ld11-ref.dt.yaml: system-bus@58c00000: 'interrupt-parent' does not
  match any of the regexes: '^.*@[1-5],[1-9a-f][0-9a-f]+$', 'pinctrl-[0-9]+'
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20220913042249.4708-9-hayashi.kunihiko@socionext.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/uniphier-support-card.dtsi

@@ -8,13 +8,13 @@
 &system_bus {
 	status = "okay";
 	ranges = <1 0x00000000 0x42000000 0x02000000>;
-	interrupt-parent = <&gpio>;
 
 	ethsc: ethernet@1,1f00000 {
 		compatible = "smsc,lan9118", "smsc,lan9115";
 		reg = <1 0x01f00000 0x1000>;
 		phy-mode = "mii";
 		reg-io-width = <4>;
+		interrupt-parent = <&gpio>;
 	};
 
 	serialsc: serial@1,1fb0000 {
@@ -22,5 +22,6 @@ serialsc: serial@1,1fb0000 {
 		reg = <1 0x01fb0000 0x20>;
 		clock-frequency = <12288000>;
 		reg-shift = <1>;
+		interrupt-parent = <&gpio>;
 	};
 };