imx: add DT aliases for imx7d-pico-pi

Add OpenWrt specific aliases for system LED and label MAC device,
also set default serial console.

Signed-off-by: Lech Perczak <[email protected]>

target/linux/imx/patches-5.15/310-ARM-dts-imx7d-pico-pi-set-aliases.patch

@@ -0,0 +1,24 @@
+--- a/arch/arm/boot/dts/imx7d-pico-pi.dts
++++ b/arch/arm/boot/dts/imx7d-pico-pi.dts
+@@ -8,12 +8,20 @@
+ 	model = "TechNexion PICO-IMX7D Board and PI baseboard";
+ 	compatible = "technexion,imx7d-pico-pi", "fsl,imx7d";
+ 
++	aliases {
++		led-boot = &led_system;
++		led-failsafe = &led_system;
++		led-running = &led_system;
++		led-upgrade = &led_system;
++		label-mac-device = &fec1;
++	};
++
+ 	leds {
+ 		compatible = "gpio-leds";
+ 		pinctrl-names = "default";
+ 		pinctrl-0 = <&pinctrl_gpio_leds>;
+ 
+-		led {
++		led_system: led {
+ 			label = "gpio-led";
+ 			gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>;
+ 		};

target/linux/imx/patches-5.15/311-ARM-imx7d-pico-pi.dts-add-default-stdout-path.patch

@@ -0,0 +1,23 @@
+From 6e8e5ccfbee7a531b035ffce3f95f3901946fa9d Mon Sep 17 00:00:00 2001
+From: Robert Nelson <[email protected]>
+Date: Wed, 9 Jan 2019 14:33:24 -0600
+Subject: [PATCH] ARM: imx7d-pico-pi.dts: add default stdout-path
+
+Signed-off-by: Robert Nelson <[email protected]>
+---
+ arch/arm/boot/dts/imx7d-pico-pi.dts | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/arch/arm/boot/dts/imx7d-pico-pi.dts
++++ b/arch/arm/boot/dts/imx7d-pico-pi.dts
+@@ -16,6 +16,10 @@
+ 		label-mac-device = &fec1;
+ 	};
+ 
++	chosen {
++		stdout-path = "serial4:115200n8";
++	};
++
+ 	leds {
+ 		compatible = "gpio-leds";
+ 		pinctrl-names = "default";