arm64: dts: rockchip: Add IR receiver to BPI-R2Pro

Add the infrared receiver and its associated pinctrl entry.

Based on Aurelien Jarno's patchset:
https://lore.kernel.org/lkml/20220930051246.391614-14-aurelien@aurel32.net/Signed-off-by: Alex Riabchenko <d3adme4t@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20221214155433.112257-1-linux@fw-web.deSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3568-bpi-r2-pro.dts

@@ -66,6 +66,13 @@ hdmi_con_in: endpoint {
 		};
 	};
 
+	ir-receiver {
+		compatible = "gpio-ir-receiver";
+		gpios = <&gpio0 RK_PC2 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ir_receiver_pin>;
+	};
+
 	vcc3v3_sys: vcc3v3-sys-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc3v3_sys";
@@ -614,6 +621,12 @@ hym8563_int: hym8563-int {
 		};
 	};
 
+	ir-receiver {
+		ir_receiver_pin: ir-receiver-pin {
+			rockchip,pins = <0 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	pcie {
 		minipcie_enable_h: minipcie-enable-h {
 			rockchip,pins = <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none_drv_level_5>;