ARM: dts: rockchip: fix ir-receiver node names

Fix ir-receiver node names on Rockchip boards,
so that they match with regex: '^ir(-receiver)?(@[a-f0-9]+)?$'

Signed-off-by: Johan Jonker <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Heiko Stuebner <[e-mail]>

arch/arm/boot/dts/rk3188-radxarock.dts

···
 		#sound-dai-cells = <0>;
 	};
 
-	ir_recv: gpio-ir-receiver {
+	ir_recv: ir-receiver {
 		compatible = "gpio-ir-receiver";
 		gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
 		pinctrl-names = "default";