ARM: dts: bcm2835-rpi-zero-w: Fix led polarity

The status "ACT" led on the Raspberry Pi Zero W is on when GPIO 47 is low.

This has been verified on a board and somewhat confirmed by both the GPIO
name ("STATUS_LED_N") and the reduced schematics [1].

[1]: https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_ZeroW_1p1_reduced.pdf

Fixes: 2c7c040 ("ARM: dts: bcm2835: Add Raspberry Pi Zero W")
Signed-off-by: Vincent Stehlé <[email protected]>
Cc: Stefan Wahren <[email protected]>
Cc: Florian Fainelli <[email protected]>
Tested-by: Stefan Wahren <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>

Author: vstehle

arch/arm/boot/dts/bcm2835-rpi-zero-w.dts

@@ -24,7 +24,7 @@
 
 	leds {
 		act {
-			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+			gpios = <&gpio 47 GPIO_ACTIVE_LOW>;
 		};
 	};