mvebu: use generic diag.sh

This commit removes the target-specific diag.sh script. This way, the
generic one is used for the target, which uses DT-aliases to specify the
LEDs used.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Tested-by: Ansuel Smith <ansuelsmth@gmail.com> [wrt3200acm @ 5.4]

target/linux/mvebu/base-files/etc/diag.sh

-#!/bin/sh
-# Copyright (C) 2014-2016 OpenWrt.org
-# Copyright (C) 2016 LEDE-Project.org
-
-. /lib/functions.sh
-. /lib/functions/leds.sh
-
-get_status_led() {
-	case $(board_name) in
-	linksys,caiman)
-		status_led="caiman:white:power"
-		;;
-	linksys,cobra)
-		status_led="cobra:white:power"
-		;;
-	linksys,mamba)
-		status_led="mamba:white:power"
-		;;
-	linksys,rango)
-		status_led="rango:white:power"
-		;;
-	linksys,shelby)
-		status_led="shelby:white:power"
-		;;
-	linksys,venom)
-		status_led="venom:blue:power"
-		;;
-	esac
-}
-
-set_state() {
-	get_status_led
-
-	case "$1" in
-	preinit)
-		status_led_blink_preinit
-		;;
-	failsafe)
-		status_led_blink_failsafe
-		;;
-	preinit_regular)
-		status_led_blink_preinit_regular
-		;;
-	done)
-		status_led_on
-		;;
-	esac
-}

target/linux/mvebu/patches-4.19/240-linksys-status-led.patch

+--- a/arch/arm/boot/dts/armada-385-linksys.dtsi
++++ b/arch/arm/boot/dts/armada-385-linksys.dtsi
+@@ -14,6 +14,13 @@
+ 	compatible = "linksys,armada385", "marvell,armada385",
+ 		     "marvell,armada380";
+ 
++	aliases {
++		led-boot = &led_power;
++		led-failsafe = &led_power;
++		led-running = &led_power;
++		led-upgrade = &led_power;
++	};
++
+ 	chosen {
+ 		stdout-path = "serial0:115200n8";
+ 	};
+@@ -71,7 +78,7 @@
+ 		pinctrl-0 = <&gpio_leds_pins>;
+ 		pinctrl-names = "default";
+ 
+-		power {
++		led_power: power {
+ 			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+ 			default-state = "on";
+ 		};
+--- a/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
++++ b/arch/arm/boot/dts/armada-xp-linksys-mamba.dts
+@@ -26,6 +26,13 @@
+ 	compatible = "linksys,mamba", "marvell,armadaxp-mv78230",
+ 		     "marvell,armadaxp", "marvell,armada-370-xp";
+ 
++	aliases {
++		led-boot = &led_power;
++		led-failsafe = &led_power;
++		led-running = &led_power;
++		led-upgrade = &led_power;
++	};
++
+ 	chosen {
+ 		bootargs = "console=ttyS0,115200";
+ 		stdout-path = &uart0;
+@@ -197,7 +204,7 @@
+ 		pinctrl-0 = <&power_led_pin>;
+ 		pinctrl-names = "default";
+ 
+-		power {
++		led_power: power {
+ 			label = "mamba:white:power";
+ 			gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
+ 			default-state = "on";