ar71xx: keep the RouterBOARD Power LED in On state

It is quite unexpected behaviour when the Power LED switches off as soon
as the kernel starts booting. So set the default state to 'Keep' for
the Power LEDs of all RouterBOARDs (e.g. RB91x, SXT Lite series, etc.).

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
[switch the default state to keep instead of on]
Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/ar71xx/files/arch/mips/ath79/mach-rb91x.c

@@ -214,6 +214,7 @@ static struct gpio_led rb711gr100_leds[] __initdata = {
 		.name		= "rb:green:power",
 		.gpio		= RB91X_GPIO_LED_POWER,
 		.active_low	= 0,
+		.default_state	= LEDS_GPIO_DEFSTATE_KEEP,
 	},
 };
 

target/linux/ar71xx/files/arch/mips/ath79/mach-rbsxtlite.c

@@ -109,6 +109,7 @@ static struct gpio_led rbsxtlite_leds_gpio[] __initdata = {
 	{
 		.name		=	"rb:green:power",
 		.gpio		=	SXTLITE_GPIO_LED_POWER,
+		.default_state	=	LEDS_GPIO_DEFSTATE_KEEP,
 	},
 };